Exponential Box-Schemes for Boundary-Layer Flows with Blowing
نویسنده
چکیده
A two-point second-order uniform box-scheme has been developed for numerical analysis of the gas flow in the boundary layer under the conditions of intensive blowing on the body surface. An effective regularization algorithm has been created. The numerical analysis indicates the second order of the uniform convergence of this box-scheme. Flowfield parameters in the boundary layer near the stagnation point of a blunt body were calculated for different magnitudes of blowing and temperature factor. Numerical results have been compared with earlier obtained data by the three-point exponential box-scheme.
منابع مشابه
Applications of exponential box schemes for viscous flows with combustion and blowing
A two-point second-order uniform box scheme and effective regularization algorithm have been developed for numerical analysis of the gas flow in the boundary layer (BL) and thin viscous shock layers (TVSL) under conditions of intensive blowing on the body surface and chemical reactions. Flowfield parameters in the boundary layer near the stagnation point of a blunt body were calculated for vari...
متن کاملA Composite Finite Difference Scheme for Subsonic Transonic Flows (RESEARCH NOTE).
This paper presents a simple and computationally-efficient algorithm for solving steady two-dimensional subsonic and transonic compressible flow over an airfoil. This work uses an interactive viscous-inviscid solution by incorporating the viscous effects in a thin shear-layer. Boundary-layer approximation reduces the Navier-Stokes equations to a parabolic set of coupled, non-linear partial diff...
متن کاملTowards an Analytical Model for Film Cooling Prediction using Integral Turbulent Boundary layer
The objective of this work is to develop deep theoretical methods that are based on the solution of the integral boundary layer equations for investigating film cooling in liquid rocket engine. The integral model assumes that heat is transferred from hot free stream gas to the liquid film both by convection and radiation. The mass is transferred to the free srteam gas by the well-known blowing ...
متن کاملEffects of coupling on turbulent gas-particle boundary layer flows at borderline volume fractions using kinetic theory
This study is concerned with the prediction of particles’ velocity in a dilute turbulent gas-solidboundary layer flow using a fully Eulerian two-fluid model. The closures required for equationsdescribing the particulate phase are derived from the kinetic theory of granular flows. Gas phaseturbulence is modeled by one-equation model and solid phase turbulence by MLH theory. Resultsof one-way and...
متن کاملStudy of Parameters Affecting Separation Bubble Size in High Speed Flows using k-ω Turbulence Model
Shock waves generated at different parts of vehicle interact with the boundary layer over the surface at high Mach flows. The adverse pressure gradient across strong shock wave causes the flow to separate and peak loads are generated at separation and reattachment points. The size of separation bubble in the shock boundary layer interaction flows depends on various parameters. Reynolds-averaged...
متن کامل