Results 311 to 320 of about 4,642,186 (371)
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Introduction to Fluid Mechanics, Sixth Edition, 2020
We know that fluids are classified as Incompressible and Compressible fluids. Incompressible fluids do not undergo significant changes in density as they flow. In general, liquids are incompressible;water being an excellent example.
W. Janna
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We know that fluids are classified as Incompressible and Compressible fluids. Incompressible fluids do not undergo significant changes in density as they flow. In general, liquids are incompressible;water being an excellent example.
W. Janna
semanticscholar +1 more source
A Variational Finite Element Discretization of Compressible Flow
Foundations of Computational Mathematics, 2019We present a finite element variational integrator for compressible flows. The numerical scheme is derived by discretizing, in a structure-preserving way, the Lie group formulation of fluid dynamics on diffeomorphism groups and the associated variational
Evan S. Gawlik, F. Gay‐Balmaz
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A Robust Conservative Mixed Finite Element Method for Isentropic Compressible Flow on Pipe Networks
SIAM Journal on Scientific Computing, 2018We consider the numerical approximation of compressible flow in a pipe network. Appropriate coupling conditions are formulated that allow us to derive a variational characterization of solutions an...
H. Egger
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2013
Publisher Summary This chapter discusses the study of aerodynamics that is almost exclusively restricted to incompressible flow. Quasi-one-dimensional (Q1D) flow and an approximate approach suitable for flows through ducts and nozzles, when changes in the cross-sectional area are gradual, are described in the chapter. Under this circumstance, the flow
P.W. Carpenter +3 more
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Publisher Summary This chapter discusses the study of aerodynamics that is almost exclusively restricted to incompressible flow. Quasi-one-dimensional (Q1D) flow and an approximate approach suitable for flows through ducts and nozzles, when changes in the cross-sectional area are gradual, are described in the chapter. Under this circumstance, the flow
P.W. Carpenter +3 more
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Shocklets in compressible flows [PDF]
Applied Mathematics and Mechanics, 2013 The mechanism of shocklets is studied theoretically and numerically for the stationary fluid, uniform compressible flow, and boundary layer flow. The conditions that trigger shock waves for sound wave, weak discontinuity, and Tollmien-Schlichting (T-S) wave in compressible flows are investigated.
Xiang-jiang Yuan +3 more
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1990
A flow is considered compressible when changes in fluid momentum produce important variations in fluid pressure and density, and the fluid’s thermodynamic characteristics play a direct role in the flow’s development. When the pressure variations are small enough, linear acoustic theory may apply.
Pijush K. Kundu +2 more
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A flow is considered compressible when changes in fluid momentum produce important variations in fluid pressure and density, and the fluid’s thermodynamic characteristics play a direct role in the flow’s development. When the pressure variations are small enough, linear acoustic theory may apply.
Pijush K. Kundu +2 more
openaire +3 more sources
, 2017
Spacecraft-parachute designs quite often include “geometric porosity” created by the hundreds of gaps and slits that the flow goes through. Computational fluid–structure interaction (FSI) analysis of these parachutes with resolved geometric porosity ...
K. Takizawa, T. Tezduyar, Taro Kanai
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Spacecraft-parachute designs quite often include “geometric porosity” created by the hundreds of gaps and slits that the flow goes through. Computational fluid–structure interaction (FSI) analysis of these parachutes with resolved geometric porosity ...
K. Takizawa, T. Tezduyar, Taro Kanai
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Turbulence in compressible flows
Physica A: Statistical Mechanics and its Applications, 1999Abstract Results stemming from a series of high-resolution three-dimensional computations using the PPM code [28] are reviewed, both for decaying and for driven supersonic turbulence at a r.m.s. Mach number of unity. A comparison with Navier-Stokes runs is provided for the first time in three dimensions.
David H. Porter +3 more
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Nonlinear Lift on a Triangular Airfoil in Low-Reynolds-Number Compressible Flow
, 2015Numerical and experimental analyses of the aerodynamic performance of a triangular airfoil in low-Reynolds-number compressible flow are performed. This airfoil is one of the candidates for propeller blades on a possible future Martian air vehicle design.
Phillip M. Munday +4 more
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AIAA Journal, 1986
Etude experimentale d'ecoulements turbulents bidimensionnels presentant de grandes regions de decollement.
H. L. Petrie, A. L. Addy, Mo Samimy
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Etude experimentale d'ecoulements turbulents bidimensionnels presentant de grandes regions de decollement.
H. L. Petrie, A. L. Addy, Mo Samimy
openaire +2 more sources