Figures index

From

Experimental Assessment of Noise Generation from I.C. Engine Intake and Exhaust Systems Components

Sabry Allam

American Journal of Vehicle Design. 2015, 3(1), 6-15
  • Figure 1. Measurement configuration for plane wave decomposition at MWL.(a) Constructor drawing of the test rig that is used with Case 1 (single orifice) and Case 2 (double orifices), (b) Photo for the test rig with SR is connected
  • Figure 2. The test objects, (a) a single diaphragm orifice with a concentric hole with t/do=0.17 and do/di=0.63, (b) double orificest/do=0.17, di/do=0.63, L=3do (c)ovalshape resonator, (d) complex side branch resonator(e)two side-branches in series (compact resonator)
  • Figure 3. Amplification of sound for the tested orifice at (a) M=0.0482, (b) M= 0.0675
  • Figure 4. Plot of D(ω) in the complex plane for a system consisting of the tested orifice and free terminationup and downstream duct at M=0.0675
  • Figure 5. Amplification of sound for the tested double orifices at(a) M=0.02, (b) M=0.033, (c) M= 0.05.L=3Do
  • Figure 6. Plot of D(ω) in the complex plane for a system consisting of the tested double orifices and free terminationup and downstream duct
  • Figure 7. Source term according calculated according to Eq.(3) for double orificesat three different speeds
  • Figure 8. Amplification of sound for the resonator shown in Figure 2(c) at different Mach numbers.(a)M=0.05, (b) M=0.10, din=0.066m
  • Figure 9. Amplification of sound for the resonator shown in Figure 2(d) at different Mach numbers. (a)M=0.05, (b) M=0.1, din=.034m
  • Figure 10. Plot of D(ω) in the complex plane for a system consisting of the tested side branch resonator and free termination up and downstream duct
  • Figure 11. Amplification of sound for the resonator shown in Figure 2(e) at different Mach number.(a) M=0.025, (b) M=.05, (c) M=0.1, do=0.037 m
  • Figure 12. Amplification of sound for the tested double orifices at(a) M=0.025, (b) M=0.05, (c) M= 0.1
  • Figure 13. Source term according calculated according to Eq.(3) compact side branch resonator at three different speeds