Parameter modification of turbulent pulsed duct flow under the effect of charge loss
Abstract
The influence of high amplitude pulses on the kinematic parameters of turbulent pulsed duct flow were studied. The behavior of diaphragms, bends and sudden enlargements was analyzed. Longitudinal evolution of velocity and static pressure modulations with and without diaphragms was obtained from a one dimensional model. Results show that the acoustic resonance frequency of the fluid column can be modulated by up to 90%. Mean static pressure is a function of the square of the velocity modulation amplitude. Modulation rate is in inverse proportion to the square root of the friction coefficient.
- Publication:
-
In Brussels Univ. Liber Amicorum Andre L. Jaumotte
- Pub Date:
- 1983
- Bibcode:
- 1983bula.rept..155B
- Keywords:
-
- Ducted Flow;
- Parameter Identification;
- Pulses;
- Turbulent Flow;
- Coefficient Of Friction;
- Flow Velocity;
- Kinematics;
- Resonant Vibration;
- Static Pressure;
- Velocity Modulation;
- Fluid Mechanics and Heat Transfer