Log in

Relevant bibliographies by topics / Collector roughness and flow parameters

Contents

Journal articles
Dissertations / Theses
Book chapters
Conference papers
Reports

Academic literature on the topic 'Collector roughness and flow parameters'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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 'Collector roughness and flow parameters.'

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 "Collector roughness and flow parameters"

1

Dr., Ashwini Kumar*. "A REVIEW REPORT FOR HEAT TRANSFER AND FLUID FLOW CHARECTRISTICS." Global Journal of Engineering Science and Research Management 4, no. 10 (2017): 98–120. https://doi.org/10.5281/zenodo.1034495.

Full text

Abstract:

Solar air heaters are one of the simplest and cost effective solar energy utilization systems for various drying applications. The thermal efficiency of solar air heaters is found to be low due to low heat transfer coefficient on the air side. Attempts have been made to enhance the heat transfer rate from the absorber plate to air by using different roughness elements. Enhancement of heat transfer coefficient is achieved by providing artificial roughness, always goes with an increment of pressure drop and more pumping power is required. So, there is a need to optimize the system parameters to

APA, Harvard, Vancouver, ISO, and other styles

2

Luca, Mihail, Nicolae Marcoie, Alexandru-Lucian Luca, and Daniel Toma. "Elements of hydraulic calculation of permanent movement at non-standard sewer collectors." IOP Conference Series: Earth and Environmental Science 1136, no. 1 (2023): 012034. http://dx.doi.org/10.1088/1755-1315/1136/1/012034.

Full text

Abstract:

Abstract An important issue in the design of the main visitable sewer collectors is the hydraulic calculation in permanent movement and non-permanent movement. Some main collectors that can be visited have non-standard flow sections, a situation that complicates the hydraulic calculation. Non-standard flow sections derive from standard sections (circular, ovoid, bell, rectangular and mixed) through natural and anthropogenic degradation processes. The initially designed section changes over time in terms of shape, dimensions and roughness, a situation in which determining the hydraulic paramete

APA, Harvard, Vancouver, ISO, and other styles

3

Ebissa, G. K. Dr. K. S. Hari Prasad. "Estimation of open channel flow parameters by using optimization techniques." INTERNATIONAL JOURNAL OF ENGINEERING DEVELOPMENT AND RESEARCH Volume 5 | Issue 2 | May 2017, Volume 5 | Issue 2 | May 2017 (2017): Page Number(s) — 1049–1073. https://doi.org/10.5281/zenodo.583720.

Full text

Abstract:

Open channel flow parameter estimation is an inverse problem, which involves the prediction of a function within a domain, given an error criterion with respect to a set of observed data. Various numerical methods have been developed to estimate open channel flow parameters. For this study, Genetic Algorithm optimization technique is selected. Because of its inherent characteristics, Genetic Algorithm optimization technique avoids the subjectivity, long computation time and ill-posedness often associated with conventional optimization techniques. The present study involves estimation of open c

APA, Harvard, Vancouver, ISO, and other styles

4

Pranav, Mehta, Kumar Sumit, Patel Vivek, and Joshi Alpesh. "Mathematical modeling and performance assessment of solar air collector." Indian Journal of Science and Technology 13, no. 18 (2020): 1803–10. https://doi.org/10.17485/IJST/v13i18.608.

Full text

Abstract:

Abstract <strong>Background:</strong> The use of solar air heater in drying has been increasing in recent years, because of their simplicity and economic configuration. <strong>Methods:</strong> Design and testing of the corrugated solar collector have been carried out in the present study. The overall system was designed and tested at Gujarat Power Engineering and Research Institute, Mehsana, India (GPERI, 23◦31'37.4"N72◦23'14.1"E). Exergetic efficiency, thermal efficiency, and temperature outlet at the same mass flow rate and solar irradiance were the major parameters for the

APA, Harvard, Vancouver, ISO, and other styles

5

Nguyen, Thanh-Cong, Dung Hoang Tien, Ba-Nghien Nguyen, and Quang-Cherng Hsu. "Multi-Response Optimization of Milling Process of Hardened S50C Steel Using SVM-GA Based Method." Metals 13, no. 5 (2023): 925. http://dx.doi.org/10.3390/met13050925.

Full text

Abstract:

This study aims to find the optimized parameters for surveying the milling process of S50C steel in a minimum quantity lubrication (MQL) environment using a support vector machine-genetic algorithm (SVM-GA). Based on the experimental matrix designed by the Taguchi method, surface roughness and cutting force data were collected corresponding to each experiment with changes in input parameters such as cutting speed, tooth feed rate, and axial depth of cut, along with changes in two parameters of the minimum lubrication system: flow rates and injection pressure. Through analysis by the SVR-NSGAII

APA, Harvard, Vancouver, ISO, and other styles

6

Nagayach, Neeraj Kumar, Kanishk Sharma, Yogesh Agrawal, and Anil Singh Yadav. "Revisiting the Effect of Rib Roughness on the Performance of Solar Air Heater." E3S Web of Conferences 430 (2023): 01264. http://dx.doi.org/10.1051/e3sconf/202343001264.

Full text

Abstract:

The energy collected from various renewable resources, such as sunlight, geothermal warmth, wind, and water, is referred to as renewable power. The sun is the ultimate source of vitality. Solar radiation vitality can be utilized in many functions, such as heating buildings and dusty foliage crops, dying chicken, wood taste, and treating modern elements. All the energy patterns in nature asking them are the origin of the sun. The solar air heater (SAH) is very common along with commonly applied sun-oriented heating apparatus. Perhaps, SAH is utilized for a wide range of applications, from resid

APA, Harvard, Vancouver, ISO, and other styles

7

Antico, Federica, Ana Ricardo, and Rui Ferreira. "The Logarithmic Law of the Wall in Flows over Mobile Lattice-Arranged Granular Beds." Water 11, no. 6 (2019): 1166. http://dx.doi.org/10.3390/w11061166.

Full text

Abstract:

The purpose of the present paper is to provide further insights on the definition of the parameters of the log-law in open-channel flows with rough mobile granular beds. Emphasis is placed in the study of flows over cohesionless granular beds composed of monosized spherical particles in simple lattice arrangements. Potentially influencing factors such as grain size distribution, grain shape and density or cohesion are not addressed in this study. This allows for a preliminary discussion of the amount of complexity needed to obtain the log-law features observed in more realistic open-channel fl

APA, Harvard, Vancouver, ISO, and other styles

8

KOSICHENKO, YU M., and O. A. BAEV. "FEATURES OF HYDRAULIC AND FILTRATION CALCULATIONS OF THE DRAINAGE AND IRRIGATION SYSTEM." Prirodoobustrojstvo, no. 4 (2021): 90–98. http://dx.doi.org/10.26897/1997-6011-2021-4-90-98.

Full text

Abstract:

Calculations of the main characteristics of the conducting network of the drainage and irrigation system are given. The method of hydraulic calculation of the conducting network of the trapezoidal cross-section to be reconstructed is presented. The following data are taken as the initial data: the depth of the flow, the area of the live section, the wetted perimeter, the slope of the channel bed, the roughness coefficient. In this case, the roughness coefficient should be specified according to the reference data, taking into account the state of the riverbed. The following channel parameters

APA, Harvard, Vancouver, ISO, and other styles

9

Suk, Ladislav, Kamil Števanka, Taron Petrosyan, and Daniel Vlček. "INVESTIGATION OF CRITICAL HEAT FLUX ON ABRADED INCONEL 625 TUBE." Acta Polytechnica CTU Proceedings 28 (December 1, 2020): 15–22. http://dx.doi.org/10.14311/app.2020.28.0015.

Full text

Abstract:

Aim of this work was to study flow boiling in an annular channel at low pressure and low flow on a tube with modified surface roughness. The tube with the outer diameter of 9.14 mm and the heated length of 380 mm was made of Inconel 625 and was manually modified using 150 grit sandpaper. The tube was placed in a glass tube with an inner diameter of 14.8 mm. Outlet pressure was set to 120, 200 and 300 kPa with varying mass flow from 400 to 600 kg/(m2.s). A high speed camera was used to record several experiments to fully understand ongoing phenomena. Surface roughness was analysed using a confo

APA, Harvard, Vancouver, ISO, and other styles

10

Matoušek, Václav, and Jan Krupička. "On equivalent roughness of mobile bed at high shear stress." Journal of Hydrology and Hydromechanics 57, no. 3 (2009): 191–99. http://dx.doi.org/10.2478/v10098-009-0018-9.

Full text

Abstract:

On equivalent roughness of mobile bed at high shear stressThe friction conditions at the top of a mobile bed are discussed for flows in the upper-plane-bed regime, i.e. for the flows with values of the bed Shields parameter larger than approximately 0.6. A special attention is devoted to flows of the bed Shields parameter bigger than 2. Experimental data for flows at high bed shear are collected from literature and new data are added from own measurements of flows of a 1.36-mm sand slurry in the 100-mm pipe loop of the Institute of Hydrodynamics. The database represents flows of very different

APA, Harvard, Vancouver, ISO, and other styles

More sources

Dissertations / Theses on the topic "Collector roughness and flow parameters"

1

Watson, D. "The effects of aquatic macrophytes on channel roughness and flow parameters." Thesis, University of Southampton, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.372787.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Villasmil, Urdaneta Larry Alfonso. "Parameters defining flow resistance and the friction factor behavior in liquid annular seals with deliberately roughened surfaces." Texas A&M University, 2006. http://hdl.handle.net/1969.1/4262.

Full text

Abstract:

Non-contacting annular seals are internal sealing devices used in rotating machinery, such as multistage centrifugal pumps and compressors. Their design affects both efficiency and rotor stability. Traditional plain and labyrinth seals are being replaced with stators containing different roughness patterns to reduce leakage and enhance rotor response. Several roughened seal experiments with liquid and air have produced leakage data indicating that the friction factor increases as the seal clearance is increased. Simplified models based on bulk flow theory and MoodyÃ¢ÂÂs approach to character

APA, Harvard, Vancouver, ISO, and other styles

3

Ivanchenko, S. E., I. O. Dulina, A. G. Nikulin, R. O. Kyrpal, S. O. Umerova, and A. V. Ragulya. "The Influence of Slip Characteristics and Casting Parameters on the Thickness of Thin Films Obtained by Tape Casting." Thesis, Sumy State University, 2013. http://essuir.sumdu.edu.ua/handle/123456789/35213.

Full text

Abstract:

Tape casting slips with different composition have been prepared using BaTiO3 nanopowder with a particle size in range of 20-25 nm. Ethanol, low polar organic solvent and menton were used as the sol-vents. Polyvinylbutyral and Butvar were used as binders. Dibutyl phthalate and polyethylene gly-col where used as plasticizers. Rheological properties of BaTiO3 suspensions were carried out on a rotary rhe-ometer. Casted tapes have been characterized by optical microscopy and optical profilome-try. Suspensions for tape casting characterized by pseudoplastic and pseudoplastic-dilatancy nature of the

APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Collector roughness and flow parameters"

1

Hanfy, Ahmed H., Pawel Flaszyński, Piotr Kaczyński, and Piotr Doerffer. "Surface Roughness Effect on Shock Boundary Layer Interaction on Compressor Rotor Profile." In Notes on Numerical Fluid Mechanics and Multidisciplinary Design. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-86605-0_15.

Full text

Abstract:

Abstract High-pressure ratios in transonic compressor rotors and fan blades pose challenges such as supersonic speeds and shock waves, which can result in boundary layer separation and potential performance issues. This study presents experimental research exploring the effect of surface roughness on shockwave-boundary layer interaction (SBLI). By employing various measurement techniques, the study provides a comprehensive overview of how surface roughness affects SBLI, enriching the dataset for internal flows across four specimens with different roughness parameters. The findings indicate tha

APA, Harvard, Vancouver, ISO, and other styles

2

Hötte, Felix, Oliver Günther, Christoph von Sethe, Matthias Haupt, Peter Scholz, and Michael Rohdenburg. "Lifetime Experiments of Regeneratively Cooled Rocket Combustion Chambers and PIV Measurements in a High Aspect Ratio Cooling Duct." In Notes on Numerical Fluid Mechanics and Multidisciplinary Design. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-53847-7_18.

Full text

Abstract:

Abstract This paper aims at experimental investigations of the life limiting mechanisms of regeneratively cooled rocket combustion chambers, especially the so called doghouse effect. In this paper the set up of a cyclic thermo-mechanical fatigue experiment and its results are shown. This experiment has an actively cooled fatigue specimen that is mounted downstream of a subscale GOX-GCH$$_{\text {4}}$$ combustion chamber with rectangular cross section. The specimen is loaded cyclically and inspected after each cycle. The effects of roughness, the use of thermal barrier coatings, the length of t

APA, Harvard, Vancouver, ISO, and other styles

3

Luca, Mihail. "Simulation of Permanent Movement in Collectors Non-Standardized Sewerage." In Sustainable Development. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.109256.

Full text

Abstract:

Sewage collectors for domestic waste water and rainwater have flow sections that are standardized in shape and size. The collector with vertical dimension H > 1.50 m is admitted to be visitable and for H ≤ 0.80 m it is not visitable. Sewage collectors can be made in demanding situations with non standardized flow sections. A series of natural and anthropogenic action can change the geometric and hydraulic parameters of the flow section over time. Thus, the flow section no longer respects the initial geometric and hydraulic parameters and becomes a non-standardized section. Knowing the hydra

APA, Harvard, Vancouver, ISO, and other styles

4

Eiff, O., E. Florens, and F. Moulin. "Roughness parameters in shallow open-channel flows." In River Flow 2014. CRC Press, 2014. http://dx.doi.org/10.1201/b17133-44.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Volk, Liubov, Pavlo Volk, and Anatoliy Rokochinskiy. "Scientific Principles of Improving the Methodology of Calculating Drainage Systems in Current Climatic Conditions." In Advances in Environmental Engineering and Green Technologies. IGI Global, 2024. http://dx.doi.org/10.4018/979-8-3693-5693-7.ch018.

Full text

Abstract:

The existence and structure of the hierarchical and hydraulic relationship between the parameters of soil flow movement, the parameters of the closed collector-drainage network, and the parameters of channels and structures of drainage systems based on the application of the system methodology were determined. A physical model, a structural model, a mathematical model, and a hydraulic model of the drainage system were developed. By using these models, the principles of determining the parameters of the hydraulic characteristics of drainage or water supply (discharge, pressure, velocity, etc.)

APA, Harvard, Vancouver, ISO, and other styles

6

Volk, Liubov, and Maksym Haponiuk. "Improvement of the Calculation of the Closed Collector-Drainage Network of Drainage Systems." In Handbook of Research on Improving the Natural and Ecological Conditions of the Polesie Zone. IGI Global, 2023. http://dx.doi.org/10.4018/978-1-6684-8248-3.ch013.

Full text

Abstract:

The necessity and scientific and methodological approaches to improving the calculation of a closed collector-drainage network of drainage systems are considered. Based on the application of the system methodology, the structure of the hierarchical and hydraulic connection between the water regime of the field and the operation mode of the closed collector-drainage network has been established. On the basis of the theoretical and experimental studies performed, relatively new scientific provisions have been proposed. This will allow, based on the application of the obtained universal equations

APA, Harvard, Vancouver, ISO, and other styles

7

Milaor Llanto, Jennifer, Ana Vafadar, and Majid Tolouei-Rad. "Multi-objective Optimisation in Abrasive Waterjet Contour Cutting of AISI 304L." In Production Engineering [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.106817.

Full text

Abstract:

The optimum waterjet machining parameters were found for maximising material removal rate and minimising surface roughness and kerf taper angle where three levels of traverse speed, abrasive flow rate, and waterjet pressure are used. The multi-linear regression equations were obtained to investigate the relationships between variables and responses, and the statistical significance of contour cutting parameters was analysed using the analysis of variance (ANOVA). Further, the response surface methodology (desirability function approach) was utilised for multi-objective optimisation. The optimu

APA, Harvard, Vancouver, ISO, and other styles

8

Sagbas, Aysun. "Analysis and Optimization of Process Parameters in Wire Electrical Discharge Machining Based on RSM: A Case Study." In Response Surface Methodology - Research Advances and Applications [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.107539.

Full text

Abstract:

In this book chapter a review and critical analysis on current research trends in wire electrical discharge machining (WEDM) and relation between different process parameters including pulse on time, pulse off time, servo voltage, peak current, dielectric flow rate, wire speed, wire tension on different process responses include material removal rate (MRR), surface roughness (Ra), sparking gap, wire lag and wire wear ration (WWR) and surface integrity factors was investigated. On the basis of critical evaluation of the available literature following conclusions are summarized. In addition, dif

APA, Harvard, Vancouver, ISO, and other styles

9

Kırbaş, İsmail, Musa Peker, Gültekin Basmacı, and Mustafa Ay. "Predictive Modeling and Optimization of Cutting Forces Through RSM and Taguchi Techniques in the Turning of ASTM B574 (Hastelloy C-22)." In Advances in Computational Intelligence and Robotics. IGI Global, 2018. http://dx.doi.org/10.4018/978-1-5225-4766-2.ch018.

Full text

Abstract:

In this chapter, the impact of cutting parameters (depth of cut, cutting speed, feed, flow, rake angle, lead angle) on cutting forces in the turning process with regard to ASTM B574 (Hastelloy C-22) material has been investigated. Variance analysis has been applied in order to determine the factors affecting the cutting forces. The optimization of the parameters affecting the surface roughness has been obtained using response surface methodology (RSM) based on the Taguchi orthogonal experimental design. The accuracy of the developed models required for the estimation of the force values (Fx, F

APA, Harvard, Vancouver, ISO, and other styles

10

Nasraoui, Haythem, Zied Driss, and Hedi Kchaou. "Theoretical Study of the Geometrical Parameters Effect on the Behavior of a Solar Chimney Power Plant." In Mechanical Engineering Technologies and Applications: Volume 2. BENTHAM SCIENCE PUBLISHERS, 2023. http://dx.doi.org/10.2174/9789815124125123020010.

Full text

Abstract:

Solar Chimney Power Plant (SCPP) is a large scale setup designed for generating green power from the thermal solar energy. In this work, a theoretical SCPP model was developed to study the impact of the main design parameters on the SCPP performance. Based on the Manzanares prototype, the proposed model was verified and validated with the experimental data. The thermodynamic characteristics of the SCPP were analyzed by varying the chimney height, the chimney radius and the collector radius. Results show that the chimney height presents an important effect of the air flow behavior. Otherwise, t

APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Collector roughness and flow parameters"

1

Stimpson, Curtis K., Jacob C. Snyder, Karen A. Thole, and Dominic Mongillo. "Roughness Effects on Flow and Heat Transfer for Additively Manufactured Channels." In ASME Turbo Expo 2015: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/gt2015-43940.

Full text

Abstract:

Recent technological advances in the field of additive manufacturing (AM), particularly with direct metal laser sintering (DMLS), have increased the potential for building gas turbine components with AM. Using DMLS for turbine components broadens the design space and allows for increasingly small and complex geometries to be fabricated with little increase in time or cost. Challenges arise when attempting to evaluate the advantages of DMLS for specific applications, particularly because of how little is known regarding the effects of surface roughness. This paper presents pressure drop and hea

APA, Harvard, Vancouver, ISO, and other styles

2

Ravigururajan, T. S., and J. Srinivasan. "Turbulent Flow in Closely-Pitched Internally Enhanced Tubes." In ASME 2000 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2000. http://dx.doi.org/10.1115/imece2000-1283.

Full text

Abstract:

Abstract General correlations are developed and verified for friction factor and heat transfer coefficients for single-phase turbulent flow in internally augmented tubes, with low pitch to height ratios. Data from existing investigations were collected for a wide range of tube parameters with e/d: 0.01 to 0.2; p/e: &lt; 8; α/90: 0.2 to 1.0, and flow parameters; Re: 2000 to 250,000 and Pr: 0.66 to 37.6. The data were applied to a linear model to get normalized correlations that were then modified to approach smooth tube correlations, as the roughness variables became very small. The correla

APA, Harvard, Vancouver, ISO, and other styles

3

Trevisani, Alessandro. "Study of correlation between scraps and main process parameters in flow-forming alloy wheels production." In Material Forming. Materials Research Forum LLC, 2025. https://doi.org/10.21741/9781644903599-101.

Full text

Abstract:

Abstract. Flow-forming is a metalworking process that can be employed to produce lightweight, high-strength components by plastically deforming materials using circumferential and axial forces. This technique is employed in the automotive industry, particularly for wheel manufacturing, allowing a reduction of weight and an enhancement of the mechanical properties. The process has been extensively studied to investigate its influence on the final properties such as tensile strength, surface roughness, and fatigue resistance. However, challenges such as residual stress, defects, and micro-cracks

APA, Harvard, Vancouver, ISO, and other styles

4

Brackbill, Timothy P., and Satish G. Kandlikar. "Effects of Low Uniform Relative Roughness on Single-Phase Friction Factors in Microchannels and Minichannels." In ASME 2007 5th International Conference on Nanochannels, Microchannels, and Minichannels. ASMEDC, 2007. http://dx.doi.org/10.1115/icnmm2007-30031.

Full text

Abstract:

Nikuradse’s [1] work on friction factors focused on the turbulent flow regime in addition to being performed in large diameter pipes. Laminar data was collected by Nikuradse, however only low relative roughness values were examined. A recent review by Kandlikar [2] showed that the uncertainties in the laminar region of Nikuradse’s experiments were very high, and his conclusion regarding no roughness effects in the laminar region is open to question. In order to conclusively resolve this discrepancy, we have experimentally determined the effects of relative roughness ranging from 0–5.18% in mic

APA, Harvard, Vancouver, ISO, and other styles

5

Ifrene, Ghoulem E. H., Doina Irofti, Abdelhakim Khouissat, Prasad Pothana, Aimene Aihar, and Bo Li. "Fracture Roughness Characterization from 360 Unrolled Core Images in a Sandstone Reservoir, Case Study, Algeria, Hassi Messaoud." In 57th U.S. Rock Mechanics/Geomechanics Symposium. ARMA, 2023. http://dx.doi.org/10.56952/arma-2023-0511.

Full text

Abstract:

ABSTRACT Various existing indirect measurement methods and techniques in the petroleum industry are used to estimate some of the fracture parameters, such as sonic and electrical image logs. However, none of them can estimate the fracture roughness and the degree of mismatch between the two opposite fracture sides due to the sampling resolution. These two are important parameters to consider when dealing with geomechanics and fluid flow in tight naturally fractured reservoirs because they are important in quantifying shear strength and permeability. A quantification and detailed characterizati

APA, Harvard, Vancouver, ISO, and other styles

6

Leung, Teresa, Joel Smith, Trevor Glen, and Will Runciman. "Application of Error-in-Variable Model (EVM) for Estimating Gas Pipeline Internal Wall Roughness Before and After Pigging." In 2016 11th International Pipeline Conference. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/ipc2016-64080.

Full text

Abstract:

Gas pipeline internal surface typically undergoes degradation for a variety of reasons such as fouling of the pipe inner surface, erosion, corrosion and deposits of objectionable materials that occasionally enter the gas stream at receipt points. Accurate monitoring of the pipe internal surface condition can hugely benefit the planning of cleaning activities. Theoretically the pipe wall roughness for a given pipe segment can be extracted based on measured flow data and other system parameters. The challenge lies in the fact that measured data all contain varying degrees of uncertainty, and the

APA, Harvard, Vancouver, ISO, and other styles

7

Badhan, Antara, Luz Bugarin, and Shaolin Mao. "Numerical Prediction of Collection Efficiency of a Personal Sampler Based on Cyclone Principle." In ASME 2014 4th Joint US-European Fluids Engineering Division Summer Meeting collocated with the ASME 2014 12th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/fedsm2014-21229.

Full text

Abstract:

A personal bio-aerosol sampler is a self-contained, operation flexible, high-efficient device for indoor air quality (IAQ) and health risk exposure monitoring and measurement. Bio-aerosols such germ-laden viruses, microbial species, airborne microorganisms and volatile organic compounds (VOC) are sucked into the sampler and are deposited on the inner wall surface based on cyclone principal. The major concern with bio-aerosol samplers is the collection efficiency. In this study, we use computational fluid dynamics (CFD) tools to evaluate key design parameters, specifically the inlet tube angle

APA, Harvard, Vancouver, ISO, and other styles

8

Gregg, Jason R., Timothy A. Burdett, Kenneth W. Van Treuren, and Stephen T. McClain. "Design Considerations, Performance Enhancing Techniques, and Wind Tunnel Testing for Small-Scale, Low Reynolds Number Wind Turbines." In ASME 2011 International Mechanical Engineering Congress and Exposition. ASMEDC, 2011. http://dx.doi.org/10.1115/imece2011-65351.

Full text

Abstract:

Wind turbines have become a significant part of the world’s energy equation and are expected to become even more important in the years to come. A much-neglected area within wind turbine research is small-scale, fixed-pitch wind turbines with typical power outputs in the 1–10 kW range. This size wind system would be ideal for residential and small commercial applications. The adoption of these systems could reduce dependence on the aging U.S. power grid. It is possible to optimize a small-scale system to operate more efficiently at lower wind speeds, which will make wind generation possible in

APA, Harvard, Vancouver, ISO, and other styles

9

He, Xupeng, Weiwei Zhu, Ryan Santoso, Marwa Alsinan, Hyung Kwak, and Hussein Hoteit. "Fracture Permeability Estimation Under Complex Physics: A Data-Driven Model Using Machine Learning." In SPE Annual Technical Conference and Exhibition. SPE, 2021. http://dx.doi.org/10.2118/206352-ms.

Full text

Abstract:

Abstract The permeability of fractures, including natural and hydraulic, are essential parameters for the modeling of fluid flow in conventional and unconventional fractured reservoirs. However, traditional analytical cubic law (CL-based) models used to estimate fracture permeability show unsatisfactory performance when dealing with different dynamic complexities of fractures. This work presents a data-driven, physics-included model based on machine learning as an alternative to traditional methods. The workflow for the development of the data-driven model includes four steps. Step 1: Identify

APA, Harvard, Vancouver, ISO, and other styles

10

Aubertine, Carolyn D., John K. Eaton, and Simon Song. "PARAMETERS CONTROLLING ROUGHNESS EFFECTS IN A SEPARATING BOUNDARY LAYER." In Third Symposium on Turbulence and Shear Flow Phenomena. Begellhouse, 2003. http://dx.doi.org/10.1615/tsfp3.170.

Full text

APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Collector roughness and flow parameters"

1

EGR Cooler Fouling Reduction: A New Method for Assessment in Early Engine Development Phase. SAE International, 2022. http://dx.doi.org/10.4271/022-01-0589.

Full text

Abstract:

High pressure EGR provides NOx emission reduction even at low exhaust temperatures. To maintain a safe EGR system operation over a required lifetime, the EGR cooler fouling must not exceed an allowable level, even if the engine is operated under worst-case conditions. A reliable fouling simulation model represents a valuable tool in the engine development process, which validates operating and calibration strategies regarding fouling tendency, helping to avoid fouling issues in a late development phase close to series production. Long-chained hydrocarbons in the exhaust gas essentially impact

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!