Academic literature on the topic 'Unsteady gas dynamics'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Unsteady gas dynamics.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Unsteady gas dynamics"

1

JOULIN, GUY, HAZEM EL-RABII, and KIRILI A. KAZAKOV. "On-shell description of unsteady flames." Journal of Fluid Mechanics 608 (July 11, 2008): 217–42. http://dx.doi.org/10.1017/s0022112008002140.

Full text
Abstract:
The problem of a non-perturbative description of unsteady premixed flames with arbitrary gas expansion is addressed in the two-dimensional case. Considering the flame as a surface of discontinuity with arbitrary local burning rate and gas velocity jumps, we show that the flame-front dynamics can be determined without having to solve the flow equations in the bulk. On the basis of the Thomson circulation theorem, an implicit integral representation of the downstream gas velocity is constructed. It is then simplified by a successive stripping of the potential contributions to obtain an explicit
APA, Harvard, Vancouver, ISO, and other styles
2

Rylov, A. I. "A variational problem in one-dimensional unsteady gas dynamics." Fluid Dynamics 19, no. 4 (1985): 667–71. http://dx.doi.org/10.1007/bf01091098.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Zhao, Y., and D. E. Winterbone. "A Study of Multi-Dimensional Gas Flow in Engine Manifolds." Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering 208, no. 2 (1994): 139–45. http://dx.doi.org/10.1243/pime_proc_1994_208_172_02.

Full text
Abstract:
In this study, a three-dimensional Navier—Stokes solver was developed based on the finite volume fluid-in-cell (FVFLIC) method. The objective was to develop a comprehensive engine simulation tool that could predict unsteady flow features in the engine manifold and gas dynamic interaction between the intake system and the engine. Therefore the geometry effect of the manifold on gas dynamics could be fully investigated and later utilized in manifold design. Being shown here are some of the latest results of the research work aiming to validate the simulation program and apply it to the analysis
APA, Harvard, Vancouver, ISO, and other styles
4

Wu, Junlin, Zhihui Li, Aoping Peng, and Xinyu Jiang. "Numerical Simulations of Unsteady Flows From Rarefied Transition to Continuum Using Gas-Kinetic Unified Algorithm." Advances in Applied Mathematics and Mechanics 7, no. 5 (2015): 569–96. http://dx.doi.org/10.4208/aamm.2014.m523.

Full text
Abstract:
AbstractNumerical simulations of unsteady gas flows are studied on the basis of Gas-Kinetic Unified Algorithm (GKUA) from rarefied transition to continuum flow regimes. Several typical examples are adopted. An unsteady flow solver is developed by solving the Boltzmann model equations, including the Shakhov model and the Rykov model etc. The Rykov kinetic equation involving the effect of rotational energy can be transformed into two kinetic governing equations with inelastic and elastic collisions by integrating the molecular velocity distribution function with the weight factor on the energy o
APA, Harvard, Vancouver, ISO, and other styles
5

Yuri, Bykov. "DEVELOPMENT OF IMPLICIT METHOD FOR NUMERICAL MODELING OF TURBOMACHINE BLADE THERMOELASTIC VIBRATIONS." Technology audit and production reserves 5, no. 1 (49) (2019): 41–44. https://doi.org/10.15587/2312-8372.2019.184169.

Full text
Abstract:
<em>There was a tendency in recent decades to increase the combustion temperature in gas-turbine engines (GTE). This allows increasing both the efficiency of the engine and the output power. In modern engines, the temperature of the exhaust gas is already significantly higher than the melting temperature of blade material. In this regard, in the design of GTE turbines there is a need to use numerical methods that allow the most reliable modeling of unsteady aerothermoelastic effects. One of the components of the aerothermoelastic problem is to integrate the unsteady equations of thermoelastici
APA, Harvard, Vancouver, ISO, and other styles
6

Chen, Shifu, Hong Lei, Meng Wang, Changyou Ding, Weixue Dou, and Lishan Chang. "Turbulent flow with nonequilibrium chemical reaction in single snorkel RH." International Journal of Numerical Methods for Heat & Fluid Flow 31, no. 8 (2021): 2715–32. http://dx.doi.org/10.1108/hff-08-2020-0535.

Full text
Abstract:
Purpose The reported mathematical models of gas–liquid flow in single snorkel Rheinstahl–Heraeus (SSRH) are based on the assumption of steady Ar-molten steel flow. The purpose of this paper is to develop a mathematical model to describe the unsteady turbulent flow (CO-Ar-molten steel) with nonequilibrium decarburization reaction. Design/methodology/approach On the base of the finite volume method, the computational fluid dynamics software CFX is used to predict the unsteady fluid flow, the spatial distributions of CO/argon gas and carbon element. The water model experiment and the industrial e
APA, Harvard, Vancouver, ISO, and other styles
7

Perotti, M. "Speed-up of a DFEM code for unsteady gas dynamics in pipes." International Journal of Mechanical Sciences 41, no. 7 (1999): 793–813. http://dx.doi.org/10.1016/s0020-7403(98)00062-9.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Liu, Jian-Hong, Fu-Min Shang, and Wei Qiao. "Numerical Simulation on Flow and Heat Transfer in Pulsating Heat Pipe with Different Models." E3S Web of Conferences 165 (2020): 01031. http://dx.doi.org/10.1051/e3sconf/202016501031.

Full text
Abstract:
Based on Mixture and Euler model, numerical simulation was used to study the flow and heat transfer in pulsating heat pipe by unsteady method. By comparing the gas volume fraction and gas velocity by different models at different time, the results showed that both models could simulate the evaporation and condensation process of the working fluid, and the liquid plug and gas plug were formed in the tube. By comparing the gas volume fraction and gas velocity at 5s and 10s, it was indicated that the fluid dynamics and heat transfer were more violent by Mixture model in the tube.
APA, Harvard, Vancouver, ISO, and other styles
9

Khan, Hassan, Saeed Islam, and Muhammad Arif. "The Fractional View Analysis of Polytropic Gas, Unsteady Flow System." Mathematical Problems in Engineering 2021 (February 11, 2021): 1–17. http://dx.doi.org/10.1155/2021/5130136.

Full text
Abstract:
Generally, the differential equations of integer order do not properly model various phenomena in different areas of science and engineering as compared to differential equations of fractional order. The fractional-order differential equations provide the useful dynamics of the physical system and thus provide the innovative and effective information about the given physical system. Keeping in view the above properties of fractional calculus, the present article is related to the analytical solution of the time-fractional system of equations which describe the unsteady flow of polytropic gas d
APA, Harvard, Vancouver, ISO, and other styles
10

Plotnikov, L. V., Y. M. Brodov, B. P. Zhilkin, and N. I. Grigoriev. "Features of heat and mechanical characteristics of pulsating flows in gas-air paths of piston engines with turbocharging." Power engineering: research, equipment, technology 21, no. 4 (2019): 77–84. http://dx.doi.org/10.30724/1998-9903-2019-21-4-77-84.

Full text
Abstract:
This article provides a comparative analysis of unsteady gas dynamics and instantaneous local heat transfer of pulsating flows in the intake and exhaust systems of reciprocating internal combustion engines in the case of a turbo-compressor installed without it and based on the results of experimental studies. Experimental studies were carried out on full-scale laboratory stands under the conditions of gas-dynamic nonstationarity. The article provides an original method for determining the instantaneous values of the local heat transfer coefficient in pipes, and describes the procedure for cond
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Unsteady gas dynamics"

1

Taflin, David E. "Numerical simulation of unsteady hypersonic chemically reacting flow /." Thesis, Connect to this title online; UW restricted, 1995. http://hdl.handle.net/1773/9967.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Foley, Lazerian. "An investigation into the unsteady gas dynamics through automotive catalyst elements." Thesis, Queen's University Belfast, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.301701.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Pope, C. W. "Gas dynamics and thermodynamics of unsteady flow in a railway tunnel." Thesis, Open University, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.374296.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Chen, Li-Kwen. "Unsteady flow and heat transfer in periodic complex geometries for the transitional flow regime." Diss., Rolla, Mo. : Missouri University of Science and Technology, 2008. http://scholarsmine.mst.edu/thesis/pdf/Chen_09007dcc804bed71.pdf.

Full text
Abstract:
Thesis (Ph. D.)--Missouri University of Science and Technology, 2008.<br>Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed May 12, 2008) Includes bibliographical references.
APA, Harvard, Vancouver, ISO, and other styles
5

Kuppa, Subrahmanyam. "Visualization and velocity measurement of unsteady flow in a gas generator using cold-flow technique." Diss., Virginia Polytechnic Institute and State University, 1989. http://hdl.handle.net/10919/54226.

Full text
Abstract:
Modeling of internal flow fields with hot, compressible fluids and sometimes combustion using cold flow techniques is discussed. The flow in a gas generator has been modeled using cold air. Experimental set up was designed and fabricated to simulate the unsteady flow with different configurations of inlet tubes. Tests were run for flow visualization and measurement of axial velocity at different frequencies ranging from 4 Hz to 12 Hz. Flow visualization showed that the incoming flow was a complex jet flow conformed to a cylindrical enclosure, while the outgoing flow resembled the venting of a
APA, Harvard, Vancouver, ISO, and other styles
6

McMackin, Martin. "A one-dimensional model of the unsteady gas dynamics and surface relations within an automotive catalyst." Thesis, Queen's University Belfast, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.486531.

Full text
Abstract:
The motivation behind this investigation was the need to further the understanding of the gas dynamic behaviour of automotive catalysts under pulsating flow conditions, with a view to improving the ease and accuracy of simulating engine-catalyst systems. A VIRTUAL 4-STROKE model representative of a current-generation engine-catalyst system was developed and simulated over a range of operating conditions. The capability . of this model to simulate a current-generation engine-catalyst system model was evaluated against measured results obtained during dynamometer experiments. A separate simulati
APA, Harvard, Vancouver, ISO, and other styles
7

Scillitoe, Ashley Duncan. "Towards predictive eddy resolving simulations for gas turbine compressors." Thesis, University of Cambridge, 2017. https://www.repository.cam.ac.uk/handle/1810/270030.

Full text
Abstract:
This thesis aims to explore the potential for using large eddy simulation (LES) as a predictive tool for gas-turbine compressor flows. Compressors present a significant challenge for the Reynolds Averaged Navier-Stokes (RANS) based CFD methods commonly used in industry. RANS models require extensive calibration to experimental data, and thus cannot be used predictively. This thesis explores how LES can offer a more predictive alternative, by exploring the sensitivity of LES to sources of uncertainty. Specifically, the importance of the numerical scheme, the Sub-Grid Scale (SGS) model, and the
APA, Harvard, Vancouver, ISO, and other styles
8

Johnson, Perry L. "Toward increasing performance and efficiency in gas turbines for power generation and aero-propulsion unsteady simulation of angled discrete-injection coolant in a hot gas path crossflow." Honors in the Major Thesis, University of Central Florida, 2011. http://digital.library.ucf.edu/cdm/ref/collection/ETH/id/444.

Full text
Abstract:
This thesis describes the numerical predictions of turbine film cooling interactions using Large Eddy Simulations. In most engineering industrial applications, the Reynolds-Averaged Navier-Stokes equations, usually paired with two-equation models such as k-Greek lowercase letter epsilon] or k-Greek lowercase letter omega], are utilized as an inexpensive method for modeling complex turbulent flows. By resolving the larger, more influential scale of turbulent eddies, the Large Eddy Simulation has been shown to yield a significant increase in accuracy over traditional two-equation RANS models for
APA, Harvard, Vancouver, ISO, and other styles
9

Kratschun, Filipp, Jens Köhne, Peter Kloft, Heiko Baum, and Katharina Schmitz. "One dimensional unsteady model of a hydropneumatic piston accumulator based on finite volume method." Technische Universität Dresden, 2020. https://tud.qucosa.de/id/qucosa%3A71089.

Full text
Abstract:
Hydraulic piston accumulators play a major role especially within the field of stationary hydraulics. The calculation of the amount of hydraulic energy which can be stored in such an accumulator is crucial when it comes to a precise system design. The knowledge of the temperature and pressure within the accumulator is required in order to calculate the amount of energy to be stored. The state of the art solution to estimate the state of change of such an accumulator is the implementation of a costly measurement system within the accumulator which tracks the position of the piston. The goal of
APA, Harvard, Vancouver, ISO, and other styles
10

Dunn, Dwain Iain. "The effect of endwall contouring on the unsteady flow through a turbine rotor." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/95940.

Full text
Abstract:
Thesis (PhD) -- Stellenbosch University, 2014.<br>ENGLISH ABSTRACT: With increasing environmental concerns and the drive for a greener economy comes an increased desire to improve turbine engine fuel efficiency and reduce emissions. Unfortunately weight reduction techniques used increase the blade loading, which in turn increases the losses. Non-axisymmetric endwall contouring is one of several techniques being investigated to reduce loss in a turbine. An investigation at Durham University produced a non-axisymmetric endwall design for a linear cascade. An adaption of the most promising
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Unsteady gas dynamics"

1

A, Mawid M., and United States. National Aeronautics and Space Administration., eds. Analysis of unsteady wave processes in a rotating channel. National Aeronautics and Space Administration, 1993.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

K, Johnson D., and United States. National Aeronautics and Space Administration., eds. Boundary conditions for unsteady compressible flows. National Aeronautics and Space Administration, 1994.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Institute for Computer Applications in Science and Engineering., ed. Review of Godunov methods. Institute for Computer Applications in Science and Engineering, NASA Langley Research Center, 1996.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

Winterbone, D. E. Theory of engine manifold design: Wave action methods for IC engines. Professional Engineering Pub., 2000.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

United States. National Aeronautics and Space Administration., ed. A numerical study of the effect of wake passing on turbine blade film cooling. National Aeronautics and Space Administration, 1995.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

Unsteady transonic heat transfer in a transient facility: Semi-annual progress report. Syracuse University, Dept. of Mechanical and Aerospace Engineering, 1985.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

Winterbone, Desmond E., and Richard J. Pearson. Theory of Engine Manifold Design: Wave Action Methods for IC Engines. John Wiley & Sons, 2005.

Find full text
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Unsteady gas dynamics"

1

Dzanic, Tarik, and Luigi Martinelli. "Towards Full Molecular Gas Dynamics Simulations of Complex Flows via the Boltzmann Equation." In Proceedings of the Cambridge Unsteady Flow Symposium 2024. Springer Nature Switzerland, 2024. https://doi.org/10.1007/978-3-031-69035-8_25.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Bird, G. A. "One-Dimensional Unsteady Flows." In Molecular Gas Dynamics And The Direct Simulation Of Gas Flows. Oxford University PressOxford, 1994. http://dx.doi.org/10.1093/oso/9780198561958.003.0013.

Full text
Abstract:
Abstract Program DSMC1U. FOR is a version of DSMC1 that has been adapted to make ensemble averages of repeated runs of an unsteady flow, rather than a time average of a steady flow that is established as the large-time state of a single run of an unsteady flow. As in the preceding programs, the flow is sampled each NIS time steps, but a separate sampling record must be made for each of these sampling events. Excessive memory would be required if the sampling arrays were simply given an extra dimension equal to the total number of sampling events MNOI in each run. The answer is to establish the
APA, Harvard, Vancouver, ISO, and other styles
3

Bird, G. A. "One-Dimensional Steady Flows." In Molecular Gas Dynamics And The Direct Simulation Of Gas Flows. Oxford University PressOxford, 1994. http://dx.doi.org/10.1093/oso/9780198561958.003.0012.

Full text
Abstract:
Abstract All calculations in this chapter are made with either the ‘general onedimensional’ program DSMC1. FOR, or with several variants of this program that have special adaptions for the study of shock waves. The term ‘one-dimensional’ is taken here to mean that there can be macroscopic flow gradients in only one direction. There can be finite flow velocity components in more than one direction and, in addition to the plane flow geometry, the program can be applied to flows with cylindrical or spherical symmetry. The geometry is specified by setting the parameter IFX to 0 for plane flows, to
APA, Harvard, Vancouver, ISO, and other styles
4

"Optical Measurement and Data Reduction for Definitely Unsteady Flow Pattern." In Rarefied Gas Dynamics: Experimental Techniques and Physical Systems. American Institute of Aeronautics and Astronautics, 1994. http://dx.doi.org/10.2514/5.9781600866302.0109.0120.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

"Discrete Kinetic Theory with Multiple Collisions: Plane Six-Velocity Model and Unsteady Couette Flow." In Rarefied Gas Dynamics: Theoretical and Computational Techniques. American Institute of Aeronautics and Astronautics, 1989. http://dx.doi.org/10.2514/5.9781600865923.0118.0130.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Alexandrov, A. V., A. N. Antonov, and T. K. Kozubskaya. "Simulation of acoustic wave propagation within unsteady viscous compressible gas flows on parallel distributed memory computer systems." In Parallel Computational Fluid Dynamics 1997. Elsevier, 1998. http://dx.doi.org/10.1016/b978-044482849-1/50024-5.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Unsteady gas dynamics"

1

Titarev, V. A. "Numerical study of essentially unsteady evaporation." In RAREFIED GAS DYNAMICS: 24th International Symposium on Rarefied Gas Dynamics. AIP, 2005. http://dx.doi.org/10.1063/1.1941582.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Greber, Isaac. "Molecular dynamics simulation of unsteady diffusion." In RAREFIED GAS DYNAMICS: 22nd International Symposium. AIP, 2001. http://dx.doi.org/10.1063/1.1407588.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Lukyanov, German A. "Unsteady Outflow of the Vapour into Vacuum from the Flat Surface." In RAREFIED GAS DYNAMICS: 24th International Symposium on Rarefied Gas Dynamics. AIP, 2005. http://dx.doi.org/10.1063/1.1941608.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Lee, Yu-Tai, Thomas W. Bein, Jin Zhang Feng, and Charles L. Merkle. "Unsteady Rotor Dynamics in Cascade." In ASME 1991 International Gas Turbine and Aeroengine Congress and Exposition. American Society of Mechanical Engineers, 1991. http://dx.doi.org/10.1115/91-gt-147.

Full text
Abstract:
A time-accurate potential-flow calculation method has been developed for unsteady incompressible flows through two-dimensional multi-blade-row linear cascades. The method represents the boundary surfaces by distributing piecewise linear-vortex and constant-source singularities on discrete panels. A local coordinate is assigned to each independently moving object. Blade-shed vorticity is traced at each time step. The unsteady Kutta condition applied is nonlinear and requires zero blade trailing-edge loading at each time. Its influence on the solutions depends on the blade trailing-edge shapes.
APA, Harvard, Vancouver, ISO, and other styles
5

Cave, H. M., M. C. Jermy, K. C. Tseng, J. S. Wu, and Takashi Abe. "DREAM: An Efficient Methodology for DSMC Simulation of Unsteady Processes." In RARIFIED GAS DYNAMICS: Proceedings of the 26th International Symposium on Rarified Gas Dynamics. AIP, 2008. http://dx.doi.org/10.1063/1.3076496.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Lee, Hobin. "Unsteady Gas-Dynamics Effects in Pyrotechnic Actuators." In 39th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit. American Institute of Aeronautics and Astronautics, 2003. http://dx.doi.org/10.2514/6.2003-4530.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Arslanbekov, Robert R., Vladimir I. Kolobov, Anna A. Frolova, and Takashi Abe. "Kinetic Simulations of Unsteady Vortex Structures in the Wake of a Cylinder." In RARIFIED GAS DYNAMICS: Proceedings of the 26th International Symposium on Rarified Gas Dynamics. AIP, 2008. http://dx.doi.org/10.1063/1.3076815.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Park, Jae Hyun. "The Effect of Thermal Accommodation on Unsteady Microscale Heat Transfer." In RAREFIED GAS DYNAMICS: 23rd International Symposium. AIP, 2003. http://dx.doi.org/10.1063/1.1581626.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Myong, R. S., J. H. Lee, T. H. Cho, and Takashi Abe. "Analysis of Unsteady Oscillatory Flows in the Slip Regime Using the Langmuir Model." In RARIFIED GAS DYNAMICS: Proceedings of the 26th International Symposium on Rarified Gas Dynamics. AIP, 2008. http://dx.doi.org/10.1063/1.3076568.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Pantazis, Sarantis. "Hybrid continuum particle simulations of unsteady flows." In 28TH INTERNATIONAL SYMPOSIUM ON RAREFIED GAS DYNAMICS 2012. AIP, 2012. http://dx.doi.org/10.1063/1.4769567.

Full text
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!