Fluid Mechanics | Engineering Notes India

Model Analysis in Fluid Mechanics: Application, Examples, Selection, Prototype and Laws

Model Analysis in Fluid Mechanics: Application, Examples, Selection, Similarity, Prototype and Laws. [with solved examples, solutions, formula and equations] Introduction to Model Analysis: In recent years, hydraulic model studies are being made in the study and analysis of many problems in fluid mechanics. A hydraulic problem may of course be analysed by analytical methods, but these analytical methods involve a [...]

By Reddy R|2018-06-15T08:41:53+05:30June 15, 2018|Model Analysis|Comments Off

Expansion and Compression of a Gas: Isothermal, Adiabatic or Isentropic Process (With Equation) | Fluid Mechanics

Expansion and Compression of a Gas: Isothermal, Adiabatic or Isentropic Process (With Equation)! When a gas flows in a conduit pressure variations bring about expansions and contractions. Such expansions or contractions of a gas between two points may be brought about by any of the following processes, namely – 1. Isothermal Process 2. Adiabatic or Isentropic Process. 1. Isothermal Process: [...]

By Reddy R|2018-06-15T08:41:52+05:30June 15, 2018|Compressible Flow|Comments Off

Reciprocating Pumps: Parts, Diagram, Types and Working Principle | Fluid Mechanics

Reciprocating Pumps: Parts, Diagram, Types and Working Principle! Introduction to Reciprocating Pumps: A reciprocating pump is a positive displacement pump. This means, the liquid is first sucked into a cylinder and then displaced or pushed by the thrust of a piston or plunger. The pump consists of a cylinder and a piston. The cylinder is in communication with suction and [...]

By Reddy R|2018-06-15T08:41:52+05:30June 15, 2018|Reciprocating Pumps|Comments Off

Governing of a Turbine: Oil Pressure Governor, Needle Valve and Surge Tank | Fluid Mechanics

Governing of a Turbine: Oil Pressure Governor, Needle Valve and Surge Tank! Meaning of Governing of a Turbine: Governing of a turbine means regulating the speed of the turbine. This is accomplished by the use of a turbine governor. A governor is the means to maintain the turbine at a constant design speed even though the load on the turbine [...]

By Reddy R|2018-06-15T08:41:52+05:30June 15, 2018|Turbine|Comments Off

Turbine: Performance, Model Testing, Speed, Model Testing and Characteristic Curves | Fluid Mechanics

In this article we will discuss about:- 1. Performance of a Turbine under Unit Head 2. Specific Speed of Turbine as a Type Number 3. Model Testing 4. Characteristic Curves. Performance of a Turbine under Unit Head: In the studies of comparison of the performances of turbines of different output, and speeds and different heads, it is convenient to determine [...]

By Reddy R|2018-06-15T08:41:52+05:30June 15, 2018|Turbine|Comments Off

Measurements of Water Level: Methods, Velocity ,Discharge and Instruments | Fluid Mechanics

Measurements of Water Level: Methods, Velocity ,Discharge and Instruments . In this article we will discuss about the various devices and instruments used in the measurements of water levels, velocity and discharge. Water Level Measurements: The gauges used for water level measurements may be classified into: (i) Non-self-registering gauges, and (ii) Self-registering gauges. The non-self-registering gauges need an observer to [...]

By Reddy R|2018-06-15T08:41:52+05:30June 15, 2018|Water Level|Comments Off

Forces Exerted by Moving Fluid on Immersed Bodies: Drag and Lift and Submerged Objects| Fluid Mechanics

When a body is placed in a moving fluid, a force is exerted on the body by the moving fluid. Similarly when a body moves within a fluid at rest then also a force is exerted on the body by the fluid. Motion of submarines, torpedos and aeroplanes are examples of this kind. Consider a body placed in a fluid [...]

By Reddy R|2018-06-15T08:41:52+05:30June 15, 2018|Immersed Bodies|Comments Off

Comparison between Reaction and Impulse Turbines | Fluid Mechanics

Learn about the comparison between reaction and impulse turbines. Comparison # Reaction Turbine: 1. Only a part of the available total head is converted into kinetic head after the water enters the wheel. 2. The velocity and pressure change as the water flows through the wheel. 3. The wheel is always full of water. Water flows into the wheel throughout [...]

By Reddy R|2018-06-15T08:41:52+05:30June 15, 2018|Turbine|Comments Off

Impact of Jet on a Plate or Vane: Notes and Viva Questions| Fluid Mechanics

Impact of Jet on a Plate or Vane: Notes and Viva Questions. Introduction to Jet: A jet of water issuing from a nozzle has a velocity and hence it possesses a kinetic energy. If this jet strikes a plate then it is said to have an impact on the plate. The jet will exert a force on the plate which [...]

By Reddy R|2018-06-15T08:41:52+05:30June 15, 2018|Jet|Comments Off

Hydraulic Turbines: Lecture Notes, Suitability, Runaway Speed and Draft Tube| Fluid Mechanics

Hydraulic Turbines: Lecture Notes, Suitability, Runaway Speed and Draft Tube. [With equations and examples] Note # 1. Introduction to Hydraulic Turbines: A hydraulic turbine is a prime mover which converts a substantial part of the potential and kinetic energy of flowing water to mechanical energy. Water stored in high level reservoirs like dams has enormous potential energy. This water having [...]

By Reddy R|2018-06-15T08:41:52+05:30June 15, 2018|Hydraulic Turbines|Comments Off

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