Quantitative Visualization of Flows in a Heater Unit of Automobile Air Conditioning System (2nd report)

Abstract

Recently, factors required for design automobile air conditioning system are amenity, noise control, automatic temperature control and so on. To improve these factors, basic analysis of flows in a heater unit or in ducts of air conditioning system is very important.
In this report, velocity measurements and visualization of flows in a practical model of heater unit are carried out by means of the dual-beam-sweep laser speckle velocimetry, and flow patterns obtained by different operation modes are investigated.