Ventilation of passenger car cabins: comparison of experimental data and numerical calculations

Herwig, Heinz; Klemp, K.; Schmücker, Arnd; Currle, Joachim

doi:10.1007/bf02601418

Cited by 8 publications

(2 citation statements)

References 5 publications

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“…However, these components are often missing in idealized models of car cabins. Herwig [3] applied LDA method on a reduced model (1:2) of a car cabin. His experiments were supplemented with CFD simulation involving k-ε model of turbulence.…”

Section: Introductionmentioning

confidence: 99%

Investigation of the velocity field downstream of a benchmark vent using numerical simulation and hot-wire anemometry

et al. 2019

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The velocity field in the area behind the automotive vent was measured by hot-wire anenemometry in detail and intensity of turbulence was calculated. Numerical simulation of the same flow field was performed using Computational fluid dynamics in commecial software STAR-CCM+. Several turbulence models were tested and compared with Large Eddy Simulation. The influence of turbulence model on the results of air flow from the vent was investigated. The comparison of simulations and experimental results showed that most precise prediction of flow field was provided by Spalart-Allmaras model. Large eddy simulation did not provide results in quality that would compensate for the increased computing cost.

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Section: Introductionmentioning

confidence: 99%

Investigation of the velocity field downstream of a benchmark vent using numerical simulation and hot-wire anemometry

et al. 2019

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“…Herwig et al 10 performed experiments and numerical simulation on a simplified 1:2 model of a typical passenger car. They used two-dimensional laser Doppler anemometry (LDA) system with water–glycerin mixture as a working media.…”

Section: Introductionmentioning

confidence: 99%

The automotive ventilation test case: Investigation of the velocity field downstream of a benchmark vent using smoke visualization and hot-wire anemometry

Lízal

Pech

Jedelský

et al. 2018

Proceedings of the Institution of Mechanical Engineers, Part D:

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Effective operation of ventilation outlets depends on more or less apparent details in their design and on the flow history in the supply channel. Regrettably, visual appearance of the dashboard commonly receives higher priority in design because of marketing demands. This leads to incorrectly designed ducts and vents, wrongly dimensioned fans and other faults. Having limited space due to the above-mentioned restrictions, ventilation system designers should be given detailed information on the effects of various changes in the design of the duct and vent. We have developed and experimentally investigated a benchmark ventilation channel which possesses main features of vents usually installed in panel boards and which allows incorporation of various components to facilitate the investigation of their influence on the flow. The jet emerging from the vent has been studied by smoke visualization and hot-wire anemometry in three basic configurations: a straight channel, a channel with a simple bend, and a channel with a bend equipped with turning vanes. The measurements proved that the effect of insertion of the bend to the channel is significant. It changes the shape of the jet core, while insertion of the turning vanes into the bend only causes homogenization of the core without changing the jet shape. This means that it is essential to always evaluate the performance of the ventilation outlet with its supply channel, as the flow history is difficult to eliminate by simple flow conditioning fixtures, such as turning vanes. The research results as well as digital geometry of the benchmark vent are freely available to all research groups that would like to use it for validation of their numerical simulations.

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Laser Doppler velocimetry measurements in an interior flow test facility: A database for CFD-code evaluation

2003

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Ventilation of passenger car cabins: comparison of experimental data and numerical calculations

Cited by 8 publications

References 5 publications

Investigation of the velocity field downstream of a benchmark vent using numerical simulation and hot-wire anemometry

Investigation of the velocity field downstream of a benchmark vent using numerical simulation and hot-wire anemometry

The automotive ventilation test case: Investigation of the velocity field downstream of a benchmark vent using smoke visualization and hot-wire anemometry

Laser Doppler velocimetry measurements in an interior flow test facility: A database for CFD-code evaluation

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