Work

Travelling Wave Solution of a Riemann Problem and Shock Structure in an Unsteady Flow of a Perfect Gas under Viscosity

Year: 2019

Type: article

Abstract: Travelling wave solution of one-dimensional unsteady flow of a perfect gas with the effect of viscosity under Riemann condition is investigated.The system of gas dynamic equations are reduced into a single ordinary differential equation for non-dimensional velocity and Riemann condition is transformed into boundary conditions.The exact solution is obtained for the gas velocity, pressure, temperature and change-in-entropy under the constant boundary conditions taking the origin at inflection point of the gas velocity profile.It is found that the travelling wave is a shock transition zone of the thickness of order 10^(-6) meter.The viscosity of the gas, Mach number, ratio of specific heats, and Riemann condition has significant effects on the shock structure.

Source: International Journal of Heat and Technology

DOI: 10.18280/ijht.370329

Authors: Manoj Singh, Arvind Patel, Ruchi Bajargaan

Institution: University of Delhi

Language: English

Topic: Computational Fluid Dynamics and Aerodynamics

Subfield: Computational Mechanics

Field: Engineering

Domain: Physical Sciences

Open Access status: bronze

Funder: University of Delhi

Award: G1033974395