Author: Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 268
Book Description
Scientific and Technical Aerospace Reports
Author: Non-equilibrium Physico-chemical Processes in Aerodynamics
Author: Technical Abstract Bulletin
Author: Defense Documentation Center (U.S.)Publisher:
ISBN:
Category : Technology
Languages : en
Pages : 1766
Book Description
NASA Technical Translation
Author: United States. National Aeronautics and Space AdministrationPublisher:
ISBN:
Category : Science
Languages : en
Pages : 506
Book Description
Current Papers
Author: Applied Mechanics Reviews
Author: NASA Technical Note
Author: Method for Calculation of the One-dimensional Nonequilibrium Flow of a General Gas Mixture Through a Hypersonic Nozzle
Author: George EmanuelPublisher:
ISBN:
Category : Aerodynamics, Hypersonic
Languages : en
Pages : 112
Book Description
The work described is a continuation of that reported previously in AEDC-TN-61-65 (calculation of the one-dimensional nonequilibrium flow of air through a hypersonic nozzle). In particular, a method is presented for the exact numerical calculation of the one-dimensional nonequilibrium flow of a general gas mixture through a converging-diverging nozzle. General equations are given for a mixture of perfect gases with an arbitrary number of species undergoing an arbitrary number of chemical and vibrational rate processes. An inexact but accurate method, similar in form to the method employed in the nonequilibrium case, is also given for calculating the corresponding one-dimensional equilibrium flow. The numerical method of solution applicable to both cases is described, including a simple procedure for starting the nonequilibrium calculations from an equilibrium condition and an improved method for controlling integration step size. The factors that affect over-all computation time are discussed. A computer program for an IBM 7090 has been written for the general gas mixture. Specific calculations are reported for a model of air consisting of O, N, NO, N2, and O2 and including eight chemical reactions plus the vibrational processes of the three diatomic species.
U.S. Government Research Reports
Author: Rarefied Gas Dynamics
Author: Lei WuPublisher: Springer Nature
ISBN: 981192872X
Category : Science
Languages : en
Pages : 293
Book Description
This book highlights a comprehensive description of the numerical methods in rarefied gas dynamics, which has strong applications ranging from space vehicle re-entry, micro-electromechanical systems, to shale gas extraction. The book consists of five major parts: The fast spectral method to solve the Boltzmann collision operator for dilute monatomic gas and the Enskog collision operator for dense granular gas; The general synthetic iterative scheme to solve the kinetic equations with the properties of fast convergence and asymptotic preserving; The kinetic modeling of monatomic and molecular gases, and the extraction of critical gas parameters from the experiment of Rayleigh-Brillouin scattering; The assessment of the fluid-dynamics equations derived from the Boltzmann equation and typical kinetic gas-surface boundary conditions; The applications of the fast spectral method and general synthetic iterative scheme to reveal the dynamics in some canonical rarefied gas flows. The book is suitable for postgraduates and researchers interested in rarefied gas dynamics and provides many numerical codes for them to begin with.