Control of Entropy Generation due to Shock

Slides:

Advertisements

Similar presentations

Thermodynamics & Gas dynamics of Real Combustion in Turbo Combustor P M V Subbarao Professor Mechanical Engineering Department Tools for precise estimation.

Advertisements

Non-frictional Source of Entropy Generation… P M V Subbarao Professor Mechanical Engineering Department I I T Delhi Rotational Inviscid Flows.

Analysis of Oblique Shocks P M V Subbarao Associate Professor Mechanical Engineering Department I I T Delhi A Mild, Efficient and Compact Compressor ….

Ch4 Oblique Shock and Expansion Waves

A Mathematical Frame Work to Create Fluid Flow Devices…… P M V Subbarao Professor Mechanical Engineering Department I I T Delhi Conservation Laws for.

Discovery of A Strong Discontinuity P M V Subbarao Associate Professor Mechanical Engineering Department I I T Delhi A Break Through Finding To Operate.

Gas Dynamics ESA 341 Chapter 3

Dr Kamarul Arifin B. Ahmad PPK Aeroangkasa

Engineering Applications of Control Volume-1 P M V Subbarao Professor Mechanical Engineering Department True Innovations for Extrasomatism…..

Irreversible Expansion & Multi-staging : A Superior Match.

Reynolds Method to Diagnosize Symptoms of Infected Flows.... P M V Subbarao Professor Mechanical Engineering Department I I T Delhi Reynolds Averaged.

Two-Dimensional Gas Dynamics

Analysis of A Disturbance in A Gas Flow P M V Subbarao Associate Professor Mechanical Engineering Department I I T Delhi Search for More Physics through.

MAE 3241: AERODYNAMICS AND FLIGHT MECHANICS

P M V Subbarao Professor Mechanical Engineering Department I I T Delhi

Analysis of Expansion Waves P M V Subbarao Associate Professor Mechanical Engineering Department I I T Delhi Another Zero Cost Nozzle …..

Parametric Cycle Analysis of Ideal Turbo Jet Engine

Supersonic Inlets - Oblique Shocks -1 School of Aerospace Engineering Copyright © 2001 by Jerry M. Seitzman. All rights reserved. AE3450 Supersonic (Engine)

One Dimensional Flow of Blissful Fluid -III P M V Subbarao Professor Mechanical Engineering Department I I T Delhi Always Start with simplest Inventions……..

Basics of GAS DYNAMICS P M V Subbarao Associate Professor Mechanical Engineering Department I I T Delhi Alphabets of this new literature called Gas Dynamics.

Gas dynamics of Real Combustion in Turbo Combustor P M V Subbarao Professor Mechanical Engineering Department Make Sure that design is Acceptable to Gas.

First step in Understanding the Nature of Fluid Flow…. P M V Subbarao Professor Mechanical Engineering Department I I T Delhi Analysis of Simplest Flow.

MAE 4261: AIR-BREATHING ENGINES

ME2213 Fluid Mechanics II Version – 1 (ME-13) Date: 23/12/2015

© Fox, Pritchard, & McDonald Introduction to Fluid Mechanics Chapter 13 Compressible Flow.

Design & Aerodynamics of Inlets & Nozzles P M V Subbarao Professor Mechanical Engineering Department Understanding of Real Flow Through Passive Devices…….

Parametric Study of Turbine Cascades P M V Subbarao Professor Mechanical Engineering Department Identification of New design Variables.……

Reflection of Oblique Shocks P M V Subbarao Professor Mechanical Engineering Department I I T Delhi A Train of Waves ….. Where to End ???

Oblique Shocks -1 School of Aerospace Engineering Copyright © 2001 by Jerry M. Seitzman. All rights reserved. AE3450 Supersonic Flow Turning For normal.

Gas Dynamics of Flow through Valves Method to Estimate the Flow Capacity of Valve Passage…. P M V Subbarao Professor Mechanical Engineering Department.

Shock waves and expansion waves Rayleigh flow Fanno flow Assignment

Great Innovations are possible through General Understanding …. P M V Subbarao Professor Mechanical Engineering Department I I T Delhi Thermodynamic View.

Subject Name: FLUID MECHANICS Subject Code:10ME36B Prepared By: R Punith Department: Aeronautical Engineering Date:

Mach’s Vision of Flying

MEL 341 : GAS DYNAMICS & PROPULSION

MAE 5380: AIR-BREATHING ENGINE INLETS

Entropy Generators in Simplest Flow

Oblique Shocks : Less Irreversible Thermodynamic Devices

Betz Theory for A Blade Element

Blade Design for Modern Wind Turbines

BY Dr. P M V Subbarao Mechanical Engineering Department I I T Delhi

Design of Passive (Adiabatic) Control Volumes

Gas Dynamics for Study of Critically Off-Design Conditions

Analysis of the Simplest Flow

The Second Extreme Gas Dynamic Activity

Gas Dynamics for Design of Intakes

Segmental Power Analysis

Enthalpy & First Law for CVs

Identification of Fundamental Design Parameter for A Wind Turbine

FLUID FLOW TYPICAL ENGINEERING PROBLEMS:

Ramjet, Turbojet and Turbofan Summary

Performance of Centrifugal Pumps

Analysis of Jet & Rocket Propulsion Systems

Supplemental Learning Module ME 303 Fluid Mechanics

Design Analysis of Axial Flow Gas Turbines

SSSF Analysis of Important Engineering CVs

Thermodynamic Analysis of Ramjet Engines

First Law Analysis of Thermodynamic CVs

Performance Analysis of Ramjet Engines

Creation of Compact Supersonic Turbojet

Irreversible Flow through A Turbine Stage

Prof. dr. A. Achterberg, Astronomical Dept

Fans, Compressors & Turbines for Jet Engines

Irreversibilities in Propulsion Systems

P M V Subbarao Professor Mechanical Engineering Department

CHAPTER THREE NORMAL SHOCK WAVES

Analysis of Hyperbolic SO-PDES

First Law for A Open Systems (Control Volume)

Introduction to Fluid Mechanics

Projectiles at an Angle

Presentation transcript:

Control of Entropy Generation due to Shock P M V Subbarao Professor Mechanical Engineering Department Tame the Normal Shock to Reduce Irreversibility !!!

Measure of Loss due to Shock Before the shock: After the shock: Across the shock:

Mach Number Vs Total Pressure : Normal Shock

Mach Number Vs Entropy Generation : Normal Shock

Inlets for Supersonic Vehicles

Oblique Shock Wave • When generating object is smaller than a “bluff body”, shockwave can be weaker than NS but stronger than the Mach wave. This is called as Oblique shock wave • q -- turning angle or “wedge angle” b -- shock angle

Flow Through A Supersonic Ramjet (Missile) What about another Thought Experiment ???

Geometrical Description of An Oblique Shock Wave wx b ux b-q wx u y b-q q

Oblique Shock Wave as a Control Volume Tangential Normal Ahead wx, Mtx ux, Mnx Of Shock Behind wy, Mty uy, Mny Shock x y uy & Mny wx & Mtx ux & Mnx wy & Mty Vy & My Vx & Mx • Shock is A CV & Must satisfy i) continuity ii) momentum iii) energy

Continuity Equation for Oblique Shock Wave wx ux Vx wy uy Vy x y • For Steady Flow thru an Oblique Shock

Momentum Equation for Oblique Shock Wave wx ux Vx wy uy Vy x y Momentum Equation for Oblique Shock Wave • For Steady Flow w/o Body Forces ( ) - r x u w A + y = • Tangential Component