Applications of exponential box schemes for viscous flows with combustion and blowing

نویسنده

  • V. V. Riabov
چکیده

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 various blowing factors. Non-equilibrium parameters in the multicomponent TVSL were evaluated for slot and uniform hydrogen injections. Numerical results indicate that the most effective cooling of the probe surface occurs at moderate uniform injections and moderate Reynolds numbers.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Exponential Box-Schemes for Boundary-Layer Flows with Blowing

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 stagn...

متن کامل

A 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 کامل

External and Internal Incompressible Viscous Flows Computation using Taylor Series Expansion and Least Square based Lattice Boltzmann Method

The lattice Boltzmann method (LBM) has recently become an alternative and promising computational fluid dynamics approach for simulating complex fluid flows. Despite its enormous success in many practical applications, the standard LBM is restricted to the lattice uniformity in the physical space. This is the main drawback of the standard LBM for flow problems with complex geometry. Several app...

متن کامل

Evaluation of Roe s Method with Different Limiters in Supersonic 2-D and Axisymmetric Flows

2-D and axisymmetric Navier-Stokes equations are solved using Reiman-Roe solver with different limiters for second-order accurate schemes. The results were obtained for supersonic viscous flows over semi-infinite axisymmetric and 2-D bodies. The free stream Mach numbers were 7.78 and 16.34. The stability of Roe method with different limiters and entropy conditions were considered. The results s...

متن کامل

Simulation of Premixed Combustion Flow around Circular Cylinder using Hybrid Random Vortex

This research describes the unsteady two-dimensional reacting flows around a circular cylinder. The numerical solution combines the random vortex method for incompressible two-dimensional viscous fluid flow with a Simple Line Interface Calculation (SLIC) algorithm for the propagation of flame interface. To simplify the governing equations, two fundamental assumptions namely Low Mach Number and ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2003