Thematische Bibliographien / SST k-ω turbulence model

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Auswahl der wissenschaftlichen Literatur zum Thema „SST k-ω turbulence model“

Autor: Grafiati

Veröffentlicht am 24. Juni 2021

Zuletzt aktualisiert am 29. Juli 2025

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Zeitschriftenartikel zum Thema "SST k-ω turbulence model"

Linh, Luong Cao, and Mai Cao Tri. "Evaluating the performance of the RANS turbulence models for simulating wave propagation over a submerged breakwater using openfoam." Journal of Science and Technology in Civil Engineering (STCE) - HUCE 17, no. 1 (2023): 79–93. http://dx.doi.org/10.31814/stce.nuce2023-17(1)-07.

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The present work is to evaluate the performance of the RANS turbulence models for simulating regular wavepropagation over a submerged breakwater using the open-source Computational Fluid Dynamics (CFD) software OpenFOAM. The present numerical results of four turbulence models (k-ε model, k-ω SST model, buoyancy-modified k-ω SST model, and stabilized k-ω SST model) are compared with published experimental data for free surface elevations and velocities at gauges. Moreover, the results of the turbulent kinetic energy (TKE) are compared and assessed between the turbulence models. Results show tha

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Yang, Xianglong, and Lei Yang. "Numerical Study of Entropy Generation in Fully Developed Turbulent Circular Tube Flow Using an Elliptic Blending Turbulence Model." Entropy 24, no. 2 (2022): 295. http://dx.doi.org/10.3390/e24020295.

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As computational fluid dynamics (CFD) advances, entropy generation minimization based on CFD becomes attractive for optimizing complex heat-transfer systems. This optimization depends on the accuracy of CFD results, such that accurate turbulence models, such as elliptic relaxation or elliptic blending turbulence models, become important. The performance of a previously developed elliptic blending turbulence model (the SST k–ω–φ–α model) to predict the rate of entropy generation in the fully developed turbulent circular tube flow with constant heat flux was studied to provide some guidelines fo

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Shen, De Zhang, He Zhang, and Hao Jie Li. "Comparison of Two Two-Equation Turbulence Model Used for the Numerical Simulation of Underwater Ammunition Fuze Turbine Flow Field." Advanced Materials Research 591-593 (November 2012): 1968–72. http://dx.doi.org/10.4028/www.scientific.net/amr.591-593.1968.

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To figure out the problem of turbulence simulation of underwater ammunition fuze turbine numerical simulation, respectively, realizable k-ε turbulence model and SST k-ω turbulence model are used for two-phase flow numerical simulation of the turbine rotation. The analysis compared the calculation results of the two turbulence models. The results showed that: the cavitation scale obtained from realizable k-ε turbulence model is shorter than that of SST k-ω turbulence model; turbine surface pressure distribution trends are similar of this two model, the results of realizable k-ε turbulence model

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Genç, M. S. "Numerical Simulation of Flow over a Thin Aerofoil at a High Reynolds Number Using a Transition Model." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 224, no. 10 (2010): 2155–64. http://dx.doi.org/10.1243/09544062jmes2121.

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In this study, a prediction of the transition and stall characteristics of an NACA64A006 thin-aerofoil was numerically simulated by FLUENT using k— kL—ω and k—ω shear-stress transport (SST) transition models, recently developed, and k—ω SST and k—ε turbulence models. Subsonic flow with free stream Mach number ( M∞) of 0.17 and the high Reynolds number ( Re) of 5.8×106 was considered at an angle of attack varying from 2° to 11°. However, the computed results were compared with the experiments of McCollough and Gault. Lift and pressure curves were accurately predicted using the k— kL—ω transitio

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Zhao, Haitao, Junwei Ye, Kaifang Wang, et al. "Selection of a Turbulence Model for Wave Evolution on a New Ecological Hollow Cube." Water 17, no. 8 (2025): 1149. https://doi.org/10.3390/w17081149.

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A suitable turbulence model is needed for numerical simulations to accurately simulate the wave evolution and hydrodynamic performance of the new ecological hollow cube. The new ecological hollow cube is an improvement upon traditional designs, as it can grow plants to dissipate wave energy. In this study, the open-source computational fluid dynamics (CFD) software OpenFOAM v2206 is used as the computational platform to analyze and evaluate the numerical results of four turbulence models, i.e., the standard k-ε, steady k-ω shear stress transfer (SST), buoyancy-corrected k-ω SST, and large eddy

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Yin, Yuan, Yangsen Li, Ruizong Lin, et al. "Research on turbulence model for simulation of wind flow in mountain areas of micro-topography." Journal of Physics: Conference Series 2441, no. 1 (2023): 012012. http://dx.doi.org/10.1088/1742-6596/2441/1/012012.

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Abstract The accuracy of wind flow simulation in mountain area in micro-topography is related to discrete scheme, turbulence model and wall function. In this paper, the standard hill model is adopt to analyze the calculation accuracy of different turbulence models. Four turbulence models, including RNG k-ε, k-ω, SST k-ω and TSST k-ω, were used in the calculation, and were compared with the result of wind tunnel test. The calculation results with the second-order upwind scheme, the SST or TSST turbulence model and the scalable wall function are basically consistent with results of wind tunnel t

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Velásquez, Laura, Ainhoa Rubio-Clemente, and Edwin Chica. "Numerical and Experimental Analysis of Vortex Profiles in Gravitational Water Vortex Hydraulic Turbines." Energies 17, no. 14 (2024): 3543. http://dx.doi.org/10.3390/en17143543.

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This work compared the suitability of the k-ϵ standard, k-ϵ RNG, k-ω SST, and k-ω standard turbulence models for simulating a gravitational water vortex hydraulic turbine using ANSYS Fluent. This study revealed significant discrepancies between the models, particularly in predicting vortex circulation. While the k-ϵ RNG and standard k-ω models maintained relatively constant circulation values, the k-ϵ standard model exhibited higher values, and the k-ω SST model showed irregular fluctuations. The mass flow rate stabilization also varied, with the k-ϵ RNG, k-ω SST, and k-ω standard models being

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Mahmudah, R. S. N., R. Widiatmono, D. Darmawan, M. R. H. Fikri, D. Sidek, and A. S. N. Hidayah. "Assessing Turbulence Model Performance in OpenFOAM for Natural Convection Simulations." Journal of Physics: Conference Series 2866, no. 1 (2024): 012031. http://dx.doi.org/10.1088/1742-6596/2866/1/012031.

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Abstract Natural convection processes are pivotal in various engineering applications, necessitating accurate and reliable computational fluid dynamics (CFD) models for their simulation. This study evaluates the efficacy of different turbulence models implemented in OpenFOAM for a natural convection scenario, aiming to identify the most suitable model for capturing complex thermal and fluid dynamic behaviors. We compared several turbulence models, including the k − ε, k − ω, and k − ω SST, using a benchmark thermal convection case. Our methodology involved setting up the simulations to reflect

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Teodosiu, Cătălin, Viorel Ilie, and Raluca Teodosiu. "Appropriate CFD Turbulence Model for Improving Indoor Air Quality of Ventilated Spaces." Mathematical Modelling in Civil Engineering 10, no. 4 (2014): 28–42. http://dx.doi.org/10.2478/mmce-2014-0020.

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Abstract Accurate assessment of air-flow in ventilated spaces is of major importance for achieving healthy and comfortable indoor environment conditions. The CFD (Computational Fluid Dynamics) technique is nowadays one of the most used approaches in order to improve the indoor air quality in ventilated environments. Nevertheless, CFD has still two main challenges: turbulence modeling and experimental validation. As a result, the objective of this study is to evaluate the performance of different turbulence models potentially appropriate for the prediction of indoor airflow. Accordingly, result

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Hien Le Tat, Nguyen Duy Anh, and Nguyen Thi Ngoc Hoa. "Numerical Investigate the Effect of Turbulence Models on the CFD Computation of Submarine Resistance." CFD Letters 16, no. 10 (2024): 126–39. http://dx.doi.org/10.37934/cfdl.16.10.126139.

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Up to now, there is no developed ‘universal’ turbulence model in CFD simulation, so employing an appropriate turbulence model is crucial for accurately predicting the hydrodynamics of a ship, especially for submarines. This study focuses on investigating the impact of turbulence models on the predicted results in frictional and pressure resistance components and flow features around the submarine at different ship velocities by the CFD method. Four various turbulence models consisting of the Reynolds Stress Model, realizable k-ε two-layer, standard k-ω, and SST k-ω turbulence models are invest

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Dissertationen zum Thema "SST k-ω turbulence model"

Zhao, Yuer. "A Numerical Study of Melt Pool Heat Transfer in the IVR of a PWR." Thesis, KTH, Fysik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-297867.

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This thesis aims to provide the thermal condition of melt pool convection by CFD simulation, which is important to the assessment of the invessel melt retention (IVR) strategy widely adopted in Generation III pressurized water reactors (PWRs). As a severe accident mitigation measure, the IVR strategy is realized through external cooling of the lower head of a reactor pressure vessel (RPV). To achieve the coolability and retention of the corium pool in the RPV lower head, the heat flux at the outer surface of the vessel should be less than the critical heat flux (CHF) of boiling around the lowe

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Yilmaz, Ali Emre. "Implementation Of Turbulence Models On 2d Hybrid Grids Using An Explicit/implicit Multigrid Algorithm." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12613783/index.pdf.

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In this thesis study, implementation, numerical stability and convergence rate issues of turbulence modeling are explored. For this purpose, a one equation turbulence model, Spalart-Allmaras, and a two-equation turbulence model, SST k-w, are adapted to an explicit, cell centered, finite volume method based, structured / hybrid multi grid flow solver, SENSE2D, developed at TUBITAK-SAGE. Governing equations for both the flow and the turbulence are solved in a loosely coupled manner, however, each set of equations are solved using a coupled, semi-implicit solution algorithm. In multigrid solution

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Fernandes, Marcos Paulo Gomes. "CalibraÃÃo do Modelo de TurbulÃncia k-ω SST para Turbinas EÃlicas de Pequeno Porte AtravÃs de AvaliaÃÃo NumÃrica e Experimental." Universidade Federal do CearÃ, 2013. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=9378.

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CoordenaÃÃo de AperfeiÃoamento de Pessoal de NÃvel Superior<br>No presente trabalho foi realizada a investigaÃÃo numÃrica e experimental do desempenho aerodinÃmico de dois aerogeradores tripÃ de pequeno porte com 3 m de diÃmetro. Os perfis aerodinÃmicos utilizados, NACA 0012 (simÃtrico) e NACA 4412 (cambado), foram projetados para aplicaÃÃes em baixas velocidades, como Ã o caso de turbinas eÃlicas de eixo horizontal. Os aerogeradores foram construÃdos e testados no LaboratÃrio de Energia Solar e GÃs Natural - UFC. Isto permitiu a determinaÃÃo das curvas de desempenho dos mesmos, possibilitando

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Tetlow, George A. "Modelling human upper-airway dynamics and dysfunction." Thesis, Curtin University, 2012. http://hdl.handle.net/20.500.11937/1867.

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Repetitive closure of the upper-airway characterises obstructive sleep apnea. It disrupts sleep causing excessive daytime drowsiness, and is linked to hypertension and cardiovascular disease.Previous studies simulating the underlying fluid mechanics of two-dimensional channel flow are based upon velocity-driven boundaries with symmetric positioning of the soft-palate. In the first part of the present work the two-dimensional work of Balint (2001) is extended to a pressure-driven model where the stability solutions space mapped for the soft-palate, symmetrically placed within viscous channel fl

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Andersson, Harald. "Numerical and experimental study of confluent jets supply device with variable airflow." Licentiate thesis, Högskolan i Gävle, Energisystem och byggnadsteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-29271.

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In recent years, application of confluent jets for design of ventilation supply devices has been studied. Similarly, numerus studies have been made on the potential and application of variable air volume (VAV) in order to reduce the energy demand of ventilation systems. This study investigates the combination of supply devices based on confluent jets and VAV, both in terms of the nearfield flow behavior of the device and the impact on thermal comfort, indoor air quality and energy efficiency on a classroom-level space when the airflow rate is varied. The method used in this study is an experim

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Janbakhsh, Setareh. "A Ventilation Strategy Based on Confluent Jets : An Experimental and Numerical Study." Doctoral thesis, Linköpings universitet, Energisystem, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-117442.

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This study presents air distribution systems that are based on confluent jets; this system can be of interest for the establishment of indoor environments, to fulfill the goals of indoor climate and energy-efficient usage. The main objective of this study is to provide deeper understanding of the flow field development of a supply device that is designed based on wall confluent jets and to investigate the ventilation performance by experimental and numerical methods. In this study, the supply device can be described as an array of round jets on a flat surface attached to a side wall. Multiple

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Guillou, Florian. "CFD Study of the Flow around a High-Speed Train." Thesis, KTH, Aerodynamik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-102033.

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This document is a report summering the master thesis work dealing with the Computational Fluid Dynamic (CFD) study of the flow around a high-speed train. The model is a scaled 1:50 generic train with two cars, one inter-car gap and simplified bogies. A platform is set on the side of the train since one of the aim of the study is to look at the consequences of the phenomena in the wake on people or objects standing on the platform. The slipstream is one of this phenomena, it is due to the fact that the viscous air is dragged when the train is passing. If too strong, it can move or destabilize

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Zhang, Zhi. "A study of flow fields during filling of a sampler." Licentiate thesis, KTH, Materials Science and Engineering, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-10693.

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<p>More and more attention has been paid to decreasing the number and size of non-metallic inclusions existing in the final products recently in steel industries. Therefore, more efforts have been made to monitor the inclusions' size distributions during the metallurgy process, especially at the secondary steelmaking period. A liquid sampling procedure is one of the commonly applied methods that monitoring the inclusion size distribution in ladles, for example, during the secondary steelmaking. Here, a crucial point is that the steel sampler should be filled and solidified without changing the

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Buchteile zum Thema "SST k-ω turbulence model"

Könözsy, László. "The k- $$\omega $$ ω Shear-Stress Transport (SST) Turbulence Model." In A New Hypothesis on the Anisotropic Reynolds Stress Tensor for Turbulent Flows. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-13543-0_3.

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Ngouani, M. M. Siewe, Yong Kang Chen, R. Day, and O. David-West. "Low-Speed Aerodynamic Analysis Using Four Different Turbulent Models of Solver of a Wind Turbine Shroud." In Springer Proceedings in Energy. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-63916-7_19.

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AbstractThis study presents the effect of four different turbulent models of solver on the aerodynamic analysis of a shroud at wind speed below 6 m/s. The converting shroud uses a combination of a cylindrical case and an inverted circular wing base which captures the wind from a 360° direction. The CFD models used are: the SST (Menter) k-ω model, the Reynolds Stress Transport (RST) model, the Improved Delay Detached Eddies Simulation model (IDDES) SST k-ω model and the Large Eddies Simulation Wall Adaptive model. It was found that all models have predicted a convergent surface pressure. The RS

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Kuwito, Andre, Steven Darmawan, and Harto Tanujaya. "Aerodynamic Analysis of the Rear Spoiler of Hatchback Vehicles Using SST K-ω Turbulence Model." In Lecture Notes in Mechanical Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-99-7495-5_17.

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Du, Yiming, Bowen Shu, Zhenghong Gao, Shengyang Nie, and Rui Ma. "On the Correction of k-ω SST Turbulence Model to Three-Dimensional Shock Separated Flow." In Lecture Notes in Electrical Engineering. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-7423-5_38.

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Könözsy, László. "The Anisotropic Hybrid k-$$\omega $$ SST/Stochastic Turbulence Model." In A New Hypothesis on the Anisotropic Reynolds Stress Tensor for Turbulent Flows. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-60603-9_2.

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El-Hennawi, Ahmed, Muhammed Eltahan, Mohammed Magooda, and Karim Moharm. "Numerical Study of an Unbalanced Oil Vane Pump Using Shear Stress Transport (SST) k − ω Turbulence Model." In Recent Advances in Engineering Mathematics and Physics. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-39847-7_7.

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Ayuba, Nuhu, and Gabriela Cantarelli Lopes. "Investigation of the Influence of Turbulence Models on Cough Droplet Evaporation: Comparing (SST) k-Ω, k-ε, and Reynolds Stress (RSM) Turbulence Models." In Proceedings of the 7th Brazilian Technology Symposium (BTSym’21). Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-04435-9_15.

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Wang, Zhiwei, Yanping He, Zhongdi Duan, Chao Huang, and Shiwen Liu. "Direct Contact Condensation Characteristics of Steam Injection into Cold-Water Pipe Under Rolling Condition." In Springer Proceedings in Physics. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-1023-6_65.

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AbstractDirect contact condensation (DCC) is widely occurred in nuclear power systems and leads to undesired phenomena such as condensation-induced water hammer. For ocean nuclear power ships, DCC is inevitable in the passive heat removal system and influenced by sea conditions. In this paper, the characteristics of DCC under rolling conditions are analyzed. The numerical model of DCC is established based on computational fluid dynamics approach. The VOF model, SST k–ω turbulence model and the additional inertia force model are incorporated to describe the liquid-gas two-phase flow under the r

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Wang, Yiping, and Bo Wang. "CFD Numerical Simulation Analysis of Wind Load Based on BIM." In Novel Technology and Whole-Process Management in Prefabricated Building. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-5108-2_45.

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AbstractFor high-rise circular buildings, based on the values of wind load shape coefficients without similar shapes in the building structural load specifications, this project is based on BIM technology and combines BIM technology with CFD technology. Through CFD numerical simulation method, SST k-w turbulence model is used to simulate the surrounding wind field and 8 wind directions of the simplified single building model, and the overall and local wind loads of the building are studied and analyzed, determine the wind load shape coefficient to provide reference for circular buildings. The

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Deville, Michel O. "Turbulence." In An Introduction to the Mechanics of Incompressible Fluids. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-04683-4_9.

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AbstractThe Reynolds decomposition and statistical averaging of velocity and pressure generate the Reynolds averaged Navier–Stokes (RANS) equations. The closure problem is solved by the introduction of a turbulence constitutive equation. Several linear turbulence models are presented in the RANS framework: $$K-\varepsilon , K-\omega $$ K - ε , K - ω . The solution of the RANS equations for the turbulent channel flow is elaborated giving the celebrated logarithmic profile. Non-linear models are built on the anisotropy tensor and the incorporation of the concept of integrity bases. The chapter e

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Konferenzberichte zum Thema "SST k-ω turbulence model"

Kaufmann, Kurt, Michel Costes, Anthony Gardner, François Richez, and Arnaud Pape. "Numerical Investigation of Three-dimensional Dynamic Stall on an Oscillating Finite Wing." In Vertical Flight Society 70th Annual Forum & Technology Display. The Vertical Flight Society, 2014. http://dx.doi.org/10.4050/f-0070-2014-9452.

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Three-dimensional numerical computations using ONERA's structured elsA code and the unstructured DLR-TAU code are compared with the OA209 finite wing experiments in static stall and dynamic stall conditions at a Mach number of 0.16 and a Reynolds number of 1 x 10⁶. The DLR-TAU computations were run with the Spalart-Allmaras and Menter SST turbulence models, and the elsA computations were carried out using the Spalart-Allmaras and the k-ω Kok + SST turbulence models. Although comparable grids were used the static simulations show large discrepancies in the stall region between the structured an

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Chougule, Nagesh K., Gajanan V. Parishwad, Sachin Pagnis, Prashant R. Gore, and Chandrashekhar M. Sewatkar. "Selection of CFD Turbulence Model for the Application of Submerged Multi-Air Jet Impingement." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-64765.

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Most impinging jet industrial applications involve turbulent flow in the whole domain downstream of the nozzle, and modeling turbulent flow presents the greatest challenge in the effort to rapidly and accurately predict the behavior of turbulent jets. Numerical modeling of impinging jet flows and heat transfer is employed widely for prediction, sensitivity analysis, and device design. Finite volume computational fluid dynamics (CFD) models of impinging jets have succeeded in making good predictions of heat transfer coefficients and velocity fields. The difficulties in accurately predicting vel

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Wang, Yong, Houlin Liu, Shouqi Yuan, Minggao Tan, and Minhua Shu. "Applicability of Turbulence Models on Characteristics Prediction of Centrifugal Pumps." In ASME-JSME-KSME 2011 Joint Fluids Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/ajk2011-03022.

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In order to research the applicability of turbulence model on characteristics prediction of centrifugal pumps at the design condition, standard k-ε turbulence model, k-ω turbulence model and SST turbulence model are selected, which are commonly used in the numerical prediction for head, efficiency and NPSHr of the centrifugal pumps. By using commercial code ANSYS CFX, the all three turbulent models are used to predict the characteristics of six centrifugal pumps with the different specific speeds at the design condition, which are varied from 34.3 to 260.5. The calculation results are compared

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Zhou, Ling, Tao Lang, and Weidong Shi. "Numerical Simulation of Different Turbulence Models in a Compact Return Diffuser." In ASME/JSME/KSME 2015 Joint Fluids Engineering Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/ajkfluids2015-9574.

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CFD have been became the main method to study the pump inner flow patterns. It is important to understand the differences and features of the different turbulence models. In this paper, the velocity flow fields in a compact return diffuser under multi-conditions are studied by CFD and PIV measurements. In the numerical simulation, three turbulence models are used to solve the steady flow filed using high-quality fine structured grids, which are including SST k-ω model, DES model and SST k-ω model with low-Re corrections. A special test rig is designed to carry out the 2D Particle Image Velocim

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Wang, Zhenfeng, Peigang Yan, Hongfei Tang, Hongyan Huang, and Wanjin Han. "The Simulation Study of Turbulence Models for Conjugate Heat Transfer Analysis of a High Pressure Air-Cooled Gas Turbine." In 2010 14th International Heat Transfer Conference. ASMEDC, 2010. http://dx.doi.org/10.1115/ihtc14-22088.

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The different turbulence models are adopted to simulate NASA-MarkII high pressure air-cooled gas turbine. The experimental work condition is Run 5411. The paper researches that the effect of different turbulence models for the flow and heat transfer characteristics of turbine. The turbulence models include: the laminar turbulence model, high Reynolds number k-ε turbulence model, low Reynolds number turbulence model (k-ω standard format, k-ω-SST and k-ω-SST-γ-θ) and B-L algebra turbulence model which is adopted by the compiled code. The results show that the different turbulence models can give

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Patel, Yogini, Teemu Turunen-Saaresti, Giteshkumar Patel, and Aki Grönman. "Numerical Investigation of Turbulence Modelling on Condensing Steam Flows in Turbine Cascade." In ASME Turbo Expo 2014: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/gt2014-26307.

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Understanding the condensation process at the low-pressure (LP) turbine is important because condensation introduces extra losses, and erosion caused by the droplets wear turbine blades. The paper presents an investigation of the turbulence modelling on the non-equilibrium homogeneous condensing steam flow in a stationary turbine cascade employing 2D compressible Navier-Stokes (NS) equations. The classical nucleation theory is utilized to model the condensation phenomena. The performance of various turbulence models (i.e., the Spalart-Allmaras, the k-ω, the k-ε, the RNG k-ε, the Realizable k-ε

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Kumar Lakshmanan, Saravana, Alok Mishra, and Ashoke De. "Assessment of Different Turbulence Models for Predicting Laminar Separation Bubble Over Thick Airfoils." In ASME 2015 Gas Turbine India Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/gtindia2015-1277.

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Accurate laminar-turbulent prediction is very much important to understand the complete performance characteristics of any airfoil which operates at low and medium Reynolds number. In this article, a numerical study has been performed over two different thick airfoils operating at low Reynolds number using k-ω SST, k-kl-ω and Spalart-Allmaras (SA) RANS models. The unsteady two dimensional (2D) simulations are performed over NACA 0021 and NACA 65-021 at Re 120,000 for a range of angle of attacks. The performances of these models are assessed through aerodynamic lift, drag and pressure coefficie

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Evans, Steve, та Sylvain Lardeau. "Validation of a turbulence methodology using the SST k-ω model for adjoint calculation". У 54th AIAA Aerospace Sciences Meeting. American Institute of Aeronautics and Astronautics, 2016. http://dx.doi.org/10.2514/6.2016-0585.

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Chowdhury, Md Navid, Sarfaraz Aziz, Shanto Kumar Shingh, Mohammad Ali, and M. Ruhul Amin. "Effects of Turbulence Modeling and Turbulent Schmidt Number on Supersonic Mixing Simulations." In ASME 2021 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/imece2021-69458.

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Abstract The supersonic mixing flow field of a Helium jet in cross-stream air is numerically simulated in the present study by solving the two-dimensional Reynolds-Averaged Navier-Stokes equations. Turbulence contribution is obtained from the Realizable k-ε and the SST k-ω model. Each model is incorporated separately with four different turbulent Schmidt numbers, i.e., 0.50, 0.35, 0.25, and 0.20. The focus of this paper is to guide the selection of a suitable turbulence model with an appropriate turbulent Schmidt number for these types of complex mixing simulations. The results show that both

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Lodefier, Koen, Bart Merci, Chris De Langhe, and Erik Dick. "Transition Modelling With the SST Turbulence Model and an Intermittency Transport Equation." In ASME Turbo Expo 2003, collocated with the 2003 International Joint Power Generation Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/gt2003-38282.

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A transition model for describing bypass transition is presented. It is based on a two-equations k–ω model and a dynamic equation for intermittency factor. The intermittency factor is a multiplier of the turbulent viscosity computed by the turbulence model. Following a suggestion by Menter et al. [1], the start of transition is computed based on local variables. The choice of the Shear-Stress Transport (SST) model instead of a k–ε model is explained. The quality of the transition model, developed on flat plate test cases, is illustrated for cascades.

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Berichte der Organisationen zum Thema "SST k-ω turbulence model"

Bigdeli, Mohammad, та Vahid Monfared. Investigation and Comparison of Stall Angle of Airfoil NACA 0012 in Reynolds Number of 3 × 106 with K‑ω SST, Realizable k‑ε, Spalart-Allmaras Turbulence Models. "Prof. Marin Drinov" Publishing House of Bulgarian Academy of Sciences, 2020. http://dx.doi.org/10.7546/crabs.2020.03.13.

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