Results 71 to 80 of about 7,025,656 (234)
Energy Science &Engineering, EarlyView.A piston bowl's design and spray angle improve air‐fuel mixing, resulting in more complete combustion and higher efficiency. Ansys Forte 2023 R1 a CFD software was used to analyze the effects of five combustion chamber geometries of cylinder, modified re‐entrant, re‐entrant, double‐stepped, and stepped on engine performance, combustion, and emission ...
Md. Nazmul Haque +7 more
wiley +1 more source
The anisotropy of low prandtl number turbulent convection [PDF]
Geophysical & Astrophysical Fluid Dynamics, 1992 A model for homogeneous anisotropic incompressible turbulence is proposed. The model generalizes the GISS model of homogeneous isotropic turbulence; the generalization involves the solution of the GISS equations along a set of integration paths in wavenumber (k-) space.
openaire +2 more sources
Energy Science &Engineering, EarlyView.CFD analysis of a diesel–CH4–H2 tri‐fuel engine shows that increasing hydrogen energy share (HES) enhances mixing and accelerates combustion, improving pressure, efficiency, and reducing CO and soot. At 60% HES, ISFC improves 26.2%, soot drops 95%, while NOx increases due to higher temperatures. ABSTRACT The global commitment to achieve net‐zero carbon
Md. Ifthaker Alam +4 more
wiley +1 more source
A Linear Stability Analysis Of Large-Prandtl-Number Thermocapillary Liquid Bridges
, 2008 A linear stability analysis is applied to determine the onset of oscillatory thermocapillary convection in cylindrical liquid bridges of large Prandtl numbers (4 1, which has been less studied previously and where Re, has been usually believed to ...
Chen PG +5 more
core +1 more source
Case Studies in Thermal EngineeringNatural convection within enclosures plays a crucial role in heat transfer across various thermal systems. This study presents a validated numerical benchmark for buoyancy-driven flow in a square cavity with differential heating, focusing solely on the ...
Saleh A. Bawazeer, Mohammad S. Alsoufi
doaj +1 more source
MHD Prandtl fluid flow past an isothermal permeable sphere with slip effects
Case Studies in Thermal Engineering, 2019 This study examines the steady and two-dimensional flow of non-Newtonian Prandtl-Eyring fluid over an isothermal sphere under buoyancy forces and non-Darcy porous media.
C.H. Amanulla +3 more
doaj +1 more source
Propulsion and Power Research, 2020 This experiment used a parallel array of hot wire probes to simultaneously measure the temperature and velocity fields in the non-isothermal turbulent boundary layer of a rotating straight channel. The Reynolds numbers are 15,000 and 25,000, respectively.
Ran Gao +4 more
doaj +1 more source
Energy Science &Engineering, EarlyView.Glazed transpired solar collectors achieve 48–75% efficiency and 11% more seasonal heat than unglazed designs by cutting convective losses, while both offer complementary benefits for ventilation preheating and dynamic wall insulation, with paybacks of 5.5–6.8 years.
Mohammad Fawaier +7 more
wiley +1 more source
Nonlinear aspects of high Reynolds number channel flows [PDF]
, 2010 This paper considers the flow in a two-dimensional channel at high Reynolds number, with wall deformations which can lead to flow separation. An asymptotic model is proposed by using the successive complementary expansion method with generalized ...
Mauss, Jacques +2 more
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Case Studies in Thermal Engineering, 2019 This research article numerically studies the influences of an effective Prandtl number along with magnetic field on the melting heat transport characteristics of Ethylene glycol/Water with gamma Al2O3 nanoparticles over a stretching sheet.
N. Vishnu Ganesh +2 more
doaj +1 more source