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0542-4094

Advanced lab in flow and energy systems

Also listed as: מעבדה מתקדמת בזרימה ומערכות אנרגיה

The experimental counterpart to the CFD lab: wind tunnel, turbomachinery and thermal systems, with uncertainty analysis treated as part of the result rather than an afterthought.

Semester
Semester B
Weekly hours
1h
Counts as
Advanced laboratories
Interest areas
Flow and thermal design · Environment and energy

Comes after

  • Thermodynamics 1
  • Experimental design and measurement lab
  • Fluid mechanics 1
  • Heat transfer
  • Flow and heat transfer lab

Opens up

  • Experimental thesis work in thermofluids

What it covers

Experiments and technique

  • Wind-tunnel aerodynamics: lift, drag, pressure distributions
  • Pump, fan and turbine characteristic curves
  • Thermal-system performance measurement
  • Data acquisition and instrumentation
  • Experiment design and propagation of uncertainty

Results worth carrying out

  • Pump affinity laws

    Q2Q1=N2N1,H2H1=(N2N1)2,P2P1=(N2N1)3\frac{Q_2}{Q_1} = \frac{N_2}{N_1}, \qquad \frac{H_2}{H_1} = \left(\frac{N_2}{N_1}\right)^2, \qquad \frac{P_2}{P_1} = \left(\frac{N_2}{N_1}\right)^3
  • Propagation of uncertainty

    uc2=i=1n(fxi)2ui2u_c^2 = \sum_{i=1}^{n}\left(\frac{\partial f}{\partial x_i}\right)^{2} u_i^2
  • Lift and drag coefficients

    CL=L12ρU2A,CD=D12ρU2AC_L = \frac{L}{\tfrac{1}{2}\rho U_\infty^2 A}, \qquad C_D = \frac{D}{\tfrac{1}{2}\rho U_\infty^2 A}

Figures worth knowing

  • Pump characteristic curves
  • Pressure-coefficient distributions
  • Calibration and uncertainty plots

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