Nozzle gas dynamics , classification of nozzel .pptx

Detaila about Nozzle, classification of nozzel

1. BIRBHUM INSTITUTE OF ENGINEERING & TECHNOLOGY NAME- ROLL NO- REGISTRATION NO- DEPARTMENT- MECHANICAL ENGINEERING SUBJECT NAME – Gas Dynamics and Jet Propulsion SUBJECT CODE – PE-ME701B SEMESTER – 7 th YEAR- 2023-2024

2. Title Slide Title: Nozzle: Definition, Types, Applications, Efficiency, Maximum Discharge, Choked Flow Subtitle: An Overview

3. Introduction to Nozzles Definition : A nozzle is a device designed to control the direction or characteristics of a fluid flow as it exits (or enters) an enclosed chamber or pipe. Commonly used to increase the velocity of the fluid.

4. Types of Nozzles 1. Convergent Nozzles: Description: Narrowed towards the exit. Use: Typically used in subsonic applications. 2. Divergent Nozzles: Description: Widened towards the exit. Use: Often used in supersonic applications. 3. Convergent-Divergent Nozzles: Description: Combination of convergent and divergent sections. Use: Used for achieving supersonic speeds.

5. Applications of Nozzles 1. Jet Engines: Used to accelerate exhaust gases to provide thrust. 2. Firefighting Equipment: Helps in controlling the direction and flow rate of water. 3. Spray Systems: Utilized in agricultural and industrial spraying applications.

6. Efficiency of Nozzles Definition of Efficiency: Efficiency in nozzles is a measure of how well the nozzle converts pressure energy into kinetic energy. Factors Affecting Efficiency: Design and shape of the nozzle. Operating conditions like pressure and temperature.

7. Maximum Discharge Definition: The maximum flow rate a nozzle can discharge. Factors Affecting Maximum Discharge: Nozzle size and shape. Pressure difference across the nozzle.

8. Choked Flow Definition: A condition where the flow through a nozzle reaches the speed of sound. Characteristics: Occurs in convergent-divergent nozzles. Important for achieving high speeds in jet propulsion and rocket engines.

9. Summary Key Points Recap : Definition and importance of nozzles. Types and their applications. Factors influencing efficiency, maximum discharge, and choked flow.

10. Thank You