Syllabus of Fluid Mechanics LectureDosen: Dijan Supramono (DS)Sukirno (SK)

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1. Lecture Boundary layer (due to velocity gradient). Ref 1. (DS). For examples: B.L. in forced convective heat transfer, B.L. inside the pipe. 2. Lecture Particle motion in fluid . Ref 2. (DS)Friction forceTerminal velocityParticle motion under influence of gravity and centrifugal forces3. Homework Presentation + quiz 1. 4. Lecture Fluid motion in fixed bed, fluidised bed and entrained bed. Ref 2. (DS). For example: catalytic reactors. 5. Homework Presentation + quiz 2.

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Fluid statics , i.e. tank, manometer (SK)Mass balance (scalar: mass) (SK)First law of thermodynamics and energy balance (scalar: energy) (SK)Bernoullis equation and Fluid friction (scalar: energy/mass, for incompressible flow): correlation of pressure and velocity of fluid (SK)Momentum balance (vectors: correlation of force exerted by solid surface with pressure and velocity of fluid ) (SK)Pumps and compressors (SK)

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References:Frank M. White, Fluid Mechanics, McGraw-Hill, Inc, 4th edition for material no 1 DSJ. F. Richardson, J. H. Harker, J. R. Backhurst, Coulson and Richardsons Chemical Engineering, Volume 2: Particle Technology and Separation Processes, edisi ke 5, 2002 for material no 2,4 DSNoel de Nevers, Fluid Mechanics for Chemical Engineers, McGraw-Hill, Inc, 2nd edition, 1991 for material no 1 to 7 SK

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Pre UTS evaluation:UTS (67%)Quiz and presentation (33%)

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1. Boundary layer inside the pipeDevelopment of fully developed laminar flow (a) and turbulent flow (b) in circular pipe (after Douglas et al, 2001)

Boundary layer

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2. Particle motion in fluid for particle separationThe motion is affected by gravity force or centrifugal force, drag force and bouyancy force. Drag force occurs due to velocity gradient over the sphere surface and pressure)

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4. Fixed beds, fluidised beds, entrained beds

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Fluid statics(Basis: force balance)

Determine the pressure reading of the gauge at the top of the tank.Determine the magnitude and location of the force of the water acting on the gate.

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4. Bernoulli Equationp1/ + V12 + g h1 = p2/ + V22 + g h2This equation correlates 2 different positions in a streamline Criteria of its validation:IncompressibleInviscid (not viscous)Steady stateIf the fluid is viscous, corrections must be imposedp1/1 + V12 + g h1 = p2/2 + V22 + g h2+ friction loss/mass

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Inviscid terminology could mean that the fluid is not affected by the friction between the fluid and a solid surface.See result of Bernoulli calculation in separate fileIn case of flow inside a pipe, pressure drop is applied to oppose friction on the pipe wall

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Fluid friction inside the pipeBasis: Newtons law of viscosityyx = - dvx/dy

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Fluid friction: friction coefficient of pipe (due to velocity gradient)

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5. Momentum Balance Equation.

u1 and u2: unit vectors

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