Inertia force, Viscous force, Gravity force, Mostly models are much smaller than the corresponding prototype.ġ3. Mention the various forces considered in fluid flow. The small scale replica of an actual structure or the machine is known as its Model, while the actual structure or machine is called as its Prototype. It plays an important role in research work.
Read More : Introduction to Bernoulli’s equation and It -Application Bernoulli equation in terms of pressureĭimensional analysis is a mathematical technique which makes use of the study of dimensions as an aid to solution of several engineering problems. It is expressed in m 3 /s.ġ0. State the assumptions used in deriving Bernoulli’s equation The incompressible flow is that type of flow in which the density is constant for the fluid flow. the density is not constant for the fluid. The compressible flow is that type of flow in which the density of the fluid changes from point to point i.e. Read in Details : Types of Flows in a Pipe /Fluid Mechanicsĩ. Define Compressible and incompressible flow
This pressure is known as Vapour pressure of the liquid.
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When vaporization takes place, the molecules start accumulating over the free liquid surface exerting pressure on the liquid surface. Surface tension is defined as the tensile force acting on the surface of the liquid in contact with a gas or on the surface between two immiscible liquids such that the contact surface behaves like a membrane under tension. Ideal fluid, Real fluid, Newtonian fluid, Non-Newtonian fluid, Ideal Plastic fluid. It is defined as the ratio between the dynamic viscosity and density of fluid. Specific volume vs = volume/ mass = 1/ρ -– for gases Specific volume vs = volume/ wt = 1/γ = 1/ρg -– for liquids Specific volume of a fluid is defined as the volume of fluid occupied by an unit wt or unit mass of a fluid.
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