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Proceedings Papers

Proc. ASME. IMECE2023, Volume 7: Energy, V007T08A076, October 29–November 2, 2023
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2023-113719
... to bridge this gap by investigating the indoor air velocity of a real-world windcatcher located on top of an atrium in the main building of the School of Sciences and Engineering (SSE) on the premises of the American University in Cairo campus (New Cairo). A detailed Computational Fluid Dynamics (CFD) model...
Proceedings Papers

Proc. ASME. IMECE2023, Volume 9: Fluids Engineering, V009T10A054, October 29–November 2, 2023
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2023-117131
... and rates. Keywords: Rime ice, Ice accretion, CFD, Dynamic mesh NOMENCLATURE Roman letters Cell s face area vector [m2] Water film thickness [m] Chord length [m] Drag coefficient Specific heat [J kg 1 K 1)] Median volume diameter of droplets m] Specific enthalpy [J kg 1] Heat transfer coefficient [W m...
Topics: Airfoils, Ice
Proceedings Papers

Proc. ASME. IMECE2023, Volume 9: Fluids Engineering, V009T10A032, October 29–November 2, 2023
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2023-115131
... and used to calculate turbulence viscosity. Steady-state and three-dimensional CFD analyses have been performed for these constants and the results were evaluated based on dimensionless velocity and turbulence profiles, jet halfthicknesses, centerline velocity and turbulence intensity (TI) on the jet axis...
Proceedings Papers

Proc. ASME. IMECE2023, Volume 9: Fluids Engineering, V009T10A010, October 29–November 2, 2023
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2023-113304
... blade work distributions. These analytical designs have been simulated using numerical flow simulation methods (Computational Fluid Dynamics - CFD). The three-dimensional CFD model was modelled with ANSYS Workbench 2022R2 and the RANS equations were solved with ANSYS CFX, after performing a detailed...
Proceedings Papers

Proc. ASME. IMECE2023, Volume 9: Fluids Engineering, V009T10A057, October 29–November 2, 2023
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2023-112059
... produced fans is investigated through numerical methods, specifically using computational fluid dynamics (CFD), for potential development to achieve higher efficiency. In this way, parametric investigations can be performed at a much less cost compared to the cost of conducting physical testing. A general...
Proceedings Papers

Proc. ASME. IMECE2023, Volume 9: Fluids Engineering, V009T10A034, October 29–November 2, 2023
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2023-117089
... Abstract This paper presents an investigation of Reynolds-averaged Navier-Stokes (RANS) turbulence models used in computational fluid dynamics (CFD) simulations of boundary layer flow and heat transfer in high Mach number flows. This study evaluates an industry standard RANS turbulence model (k...
Proceedings Papers

Proc. ASME. IMECE2023, Volume 9: Fluids Engineering, V009T10A004, October 29–November 2, 2023
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2023-112080
... efficiency. On the other hand, a positive pre-swirl leads to a reduction in the characteristic curves. These analytical results have been validated performing numerical CFD simulations. The design of the impeller and the guide vanes is performed with an extended design strategy for the entire blade channel...
Proceedings Papers

Proc. ASME. IMECE2023, Volume 9: Fluids Engineering, V009T10A058, October 29–November 2, 2023
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2023-112475
... forces produced from hydrofoils on race yachts remains challenging, due to a wide operating regime and complex hydrodynamical phenomena. The purpose of this study was to investigate methods of decomposing the total drag force of a hydrofoil from computational fluid dynamics (CFD) simulations into its...
Proceedings Papers

Proc. ASME. IMECE2023, Volume 9: Fluids Engineering, V009T10A024, October 29–November 2, 2023
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2023-112890
.... Keywords: Fuel spread; Fuel depth; CFD; Design of Experiments NOMENCLATURE 1 All factors low D High Density V High Viscosity S High Surface Tension R High Surface Roughness 1. INTRODUCTION Various types of liquid fuels are often stored or transported to power generation plants such as oil, coal...
Proceedings Papers

Proc. ASME. IMECE2023, Volume 10: Heat Transfer and Thermal Engineering, V010T11A035, October 29–November 2, 2023
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2023-113930
... of a CFD (Computational Fluid Dynamics) model to simulate the thermal field and species distribution inside a movie theatre and to analyze the Indoor Air Quality (IAQ) to evaluate the thermal comfort of its occupants. For this movie theatre, the dimensions, the layout and the system ventilation details...
Proceedings Papers

Proc. ASME. IMECE2023, Volume 9: Fluids Engineering, V009T10A067, October 29–November 2, 2023
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2023-112340
... investigates leakage and rotordynamic characteristics of combined hole-pattern annular gas seals composed of circular and hexagonal patterns using 3D computational fluid dynamics (CFD). In literature, annular gas seals with circular and hexagonal cavities are investigated depending on shape of the patterns...
Proceedings Papers

Proc. ASME. IMECE2023, Volume 10: Heat Transfer and Thermal Engineering, V010T11A039, October 29–November 2, 2023
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2023-113566
... on a Fortran-based Computational Fluid Dynamics (CFD) code to investigate non-premixed flame applications, utilizing a fourth-order accurate compact finite difference scheme. The CFD code incorporates the flamelet model combined with the Navier-Stokes (NS) equations to solve for various variables, including...
Proceedings Papers

Proc. ASME. IMECE2023, Volume 9: Fluids Engineering, V009T10A062, October 29–November 2, 2023
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2023-113724
... Abstract High-fidelity computational fluid dynamics (CFD) simulations for design space explorations can be exceedingly expensive due to the cost associated with resolving the finest scales. This computational cost/accuracy trade-off is a major challenge for modern CFD simulations...
Proceedings Papers

Proc. ASME. IMECE2023, Volume 9: Fluids Engineering, V009T10A063, October 29–November 2, 2023
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2023-114156
... and their functioning, followed by the proposal, selection, and validation by means of Computational Fluid Dynamics, CFD, simulation of the redesign of the cuttings incorporation system to solve the current backflow failure. Once this stage is completed, the selection and documentation of the necessary instrumentation...
Proceedings Papers

Proc. ASME. IMECE2023, Volume 10: Heat Transfer and Thermal Engineering, V010T11A003, October 29–November 2, 2023
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2023-113484
..., around its pseudocritical temperature at 308 K (at 8 MPa) are critical for interpreting these results. The study identifies the optimum conditions at which s-CO 2 proves to be better than conventional coolants such as water. CFD supercritical carbon dioxide heat transfer coefficient...
Proceedings Papers

Proc. ASME. IMECE2023, Volume 4: Advanced Materials: Design, Processing, Characterization and Applications; Advances in Aerospace Technology, V004T05A012, October 29–November 2, 2023
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2023-115021
... in 1D and transient CFD sloshing analyses, then effects of different designs were investigated.1D analyses were constructed using Siemens Amesim program and they were managed in order to get initial conditions for further CFD analyses. As an input, bank-to-bank maneuver acceleration was applied along 10...
Proceedings Papers

Proc. ASME. IMECE2023, Volume 7: Energy, V007T08A033, October 29–November 2, 2023
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2023-113318
... investigation. Given that the propeller contributes to 80-90% of the vessel's fuel consumption, a detailed analysis of the hydrodynamic performance improvement is warranted. To address this, a cost-effective and efficient computational fluid dynamics (CFD) approach is proposed to qualitatively connect...
Proceedings Papers

Proc. ASME. IMECE2023, Volume 7: Energy, V007T08A081, October 29–November 2, 2023
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2023-114681
... Abstract The study of solid fuel combustion and gasification is crucial for the development of clean and efficient energy systems, especially in light of concerns about climate change and environmental contamination. With Computational fluid dynamics (CFD) that is widespread in combustion...
Proceedings Papers

Proc. ASME. IMECE2022, Volume 4: Biomedical and Biotechnology; Design, Systems, and Complexity, V004T05A020, October 30–November 3, 2022
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2022-90593
... of a mathematical model of the anatomical domain. The study therefore was completed in order to develop a computational fluid dynamics (CFD) model to simulate the interstitial fluid flow in adipose tissue. Various characteristics of the tissue had to be defined by research and experimentation in order to create...
Proceedings Papers

Proc. ASME. IMECE2022, Volume 4: Biomedical and Biotechnology; Design, Systems, and Complexity, V004T05A033, October 30–November 3, 2022
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2022-96001
.... It was found that for the OoC tested, by increasing the inlet velocity, the dissolved oxygen that reaches the organoids decreases. numerical modelling CFD fluid flow organ-on-a-chip microfluidics Proceedings of the ASME 2022 International Mechanical Engineering Congress and Exposition IMECE2022...