Subject Code & Name: CH25C03 – Fluid Mechanics
Regulation: R-2025
Semester: III (Third Semester)
Branch: B.Tech. Chemical Engineering (Chem) / B.Tech. Petrochemical Technology (Petrochem)
Credits / L-T-P: 4 Credits | L-T-P: 3-0-2
Course Objectives
- To provide knowledge on fluid behavior, fluid flow analysis, pressure drop estimation, flow measurement techniques, and performance characteristics of fluid handling equipment used in chemical engineering applications.
- Introduction to Types of Fluids - Fluids - Properties, Methods of analysis and description - fluid as a continuum – Velocity and stress field - Newtonian and non-Newtonian fluids – Classification of fluid motion.
Full Unit-wise Syllabus
Unit I – Dimensional Analysis and Similitude
The principle of dimensional homogeneity – dimensional analysis, Rayleigh method and the Pi- theorem - non-dimensional action of the basic equations - similitude – relationship between dimensional analysis and similitude - use of dimensional analysis for scale up studies
Activities: Apply dimensional analysis techniques to engineering problems, explore and list dimensionless numbers from allied engineering disciplines, evaluate similitude criteria for scale-up studies using dimensionless numbers.
Unit II – Fluid Statics And Kinematics
Fluid statics – basic equation - equilibrium of fluid element – pressure variation in a static fluid - application to manometer – Differential analysis of fluid motion – continuity, equation of motions, Bernoulli equation and Navier- Stokes equation.
Activities: Solve problems based on continuity equation, Navier-Stokes equation and Bernoulli equation problems.
Unit III – Characteristics of Internal and External Flows
Reynolds number regimes, internal flow - flow through pipes – pressure drop under laminar and turbulent flow conditions – major and minor losses; External flows - boundary layer concepts, boundary layer thickness under laminar and turbulent flow conditions- Flow over a sphere – friction and pressure drag - flow through fixed and fluidized beds.
Practical: 1. Flow through pipes (Straight pipe / Annular pipe) 2. Flow through helical coil and spiral coil 3. Pressure drop studies in packed bed columns 4. Pressure drop studies in fluidized bed column
Activities: Compare laminar and turbulent flow characteristics in engineering applications.
Unit IV – Flow Measurements and Metering
Flow measurement - Constant and variable head meters; Velocity measurement techniques; Type and characteristics of valves; Classification, performance characteristics of pumps.
Practical: 1. Calibration of variable head flow meters (Orifice meter / Venturi meter) 2. Characteristic curves of pumps (Centrifugal / Reciprocating)
Activities: Analyze and interpret pump performance curves.
Course Outcomes (COs)
- CO1: Understand fluid properties, fluid statics, and stress strain relationships under static conditions.
- CO2: Apply dimensional analysis and similitude principles to develop engineering correlations and scale up relationships.
- CO3: Analyze fluid flow behavior using continuity Bernoulli, and Navier Stokes equations.
- CO4: Evaluate the performance of internal and external flow systems, including pipes, packed beds, and fluidized beds under varying operating conditions.
- CO5: Design and assess fluid transport systems by selecting suitable flow measuring devices, pumps and valves for chemical engineering applications.
Assessment Pattern (Quick Note)
- Weightage: Continuous Assessment 40% | End Semester Examinations 60%
- Internal methodology: Assignments (20%), Experimental data analysis and numerical problem solving (20%), Quiz/MCQs (20%), Internal Examinations (40%)
Source: Official Anna University – B.Tech. Chemical Engineering R-2025 Curriculum
Last Updated: September 2026
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