Numerical Investigation of Fluid Flow in an Automotive HVAC Module

Cho, Nam-Hyo; Kim, Mi-Ro

doi:10.4271/971778

Cited by 10 publications

(2 citation statements)

References 8 publications

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“…Currie (1997) numerically simulated the flow field and temperature distribution in a passenger compartment and evaluated the thermal comfort of occupants. To analyze some important designs, Cho and Kim (1997) numerically investigated the flow characteristics and heat transfer in an automotive HVAC module.…”

Section: Regular Papermentioning

confidence: 99%

Investigation on the flow characteristics inside an automotive HVAC system with varying ventilation mode

Kang

Lee

2009

J Vis

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The ventilation flow in a heating, ventilation and air conditioning (HVAC) module of a passenger car was investigated experimentally. Three different ventilation modes with varying temperature mode were tested to study the effect of ventilation mode on the velocity field inside the HVAC module. For each mode, more than 450 instantaneous velocity fields were measured using a particle image velocimetry (PIV) velocity field measurement technique. The instantaneous velocity fields were ensemble averaged to obtain the spatial distribution of mean velocity and spanwise vorticity. The present work highlights the usefulness of the PIV technique for the analysis of the flow inside an HVAC module. The experimental results can be used not only to understand and improve the ventilation flow of an HVAC module but also to validate numerical predictions.

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Section: Regular Papermentioning

confidence: 99%

Investigation on the flow characteristics inside an automotive HVAC system with varying ventilation mode

Kang

Lee

2009

J Vis

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“…Zhukauskas and Ziugzda [6] reported that turbulent intensity increased the heat transfer coefficient in the heat transfer system. But, Cho et al [7] assumed simply that the mean turbulent fluctuation velocity is 30% of mean velocity at inlet. Lee et al [8] gave assumed constants to inlet conditions of turbulent kinetic energy, K and turbulent dissipation energy, ε in the paper.…”

Section: Introductionmentioning

confidence: 99%

Comparison between numerical computations and measurements by LDV for fluid flow in rectangular duct systems

2008

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Fluid flows in rectangular duct systems are measured by using the laser-Doppler velocity meter and computed by commercial software of Star-CD for comparisons between flows. Three rectangular systems are investigated in this study: a rectangular duct with a 90 degree bent elbow, a rectangular duct with two branches, and a rectangular duct in the middle of which a circular cylinder is located. These investigations show that the numerical solutions satisfactorily predict design factors: for example, the K -factor for an elbowed duct, the distribution ratio of flow rates into each branch from a main duct, and the Nusselt number around the circular duct. However, there are some disagreements in the velocity profile and turbulent kinetic energy at each cross section of the duct systems.

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Accuracy in Flow Simulations of Climate Control-Part 1: The Air Distribution System

Axelsson¹,

Enwald²

1999

SAE Technical Paper Series

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Numerical Investigation of Fluid Flow in an Automotive HVAC Module

Cited by 10 publications

References 8 publications

Investigation on the flow characteristics inside an automotive HVAC system with varying ventilation mode

Investigation on the flow characteristics inside an automotive HVAC system with varying ventilation mode

Comparison between numerical computations and measurements by LDV for fluid flow in rectangular duct systems

Accuracy in Flow Simulations of Climate Control-Part 1: The Air Distribution System

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