Numerical calculation of coolant flow around cylinder liner in heavy duty diesel engine.

Takenaka, Yoshihide; Aoyagi, Yuzo; Joko, Isao

doi:10.3154/jvs1981.8.219

Cited by 1 publication

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…An additional factor which also has to be taken into account is the flow separation from the intake port surface located along the inner radius of the bent intake port. This is expected to be more significant at high valve lifts, as suggested by Endres et al [9], Lee et al [12] and Takenaka et al [15]. The turbulence intensity (figure 6, bottom) does not reflect high velocity gradients, except in the area of transition from reversal to the downstream flow, where the RMS value is high.…”

Section: The Effect Of Radial Positioning Of the Lda Measurement Volu...mentioning

confidence: 69%

The influence of radial positioning accuracy on LDA velocity measurements in a valve gap

Weclas¹

1996

Meas. Sci. Technol.

View full text Add to dashboard Cite

In this paper, the effect of radial positioning of the measurement plane on the measured velocity profiles in a stationary valve gap under unsteady flow conditions is discussed for three velocity components. As shown, positioning of the measurement plane significantly influences all measured velocity component distributions across the valve gap, as well as the temporal velocity behaviour, particularly in the upper part of the valve gap where a high radial gradient of velocity was observed. This effect relates to the azimuthal position of the measurement point around the valve axis. A generalization of the LDA measurement control volume positioning problem and practical considerations are also discussed in the paper. In the case of high-velocity gradients in areas remote from the wall, minimization of the LDA measuring control volume dimensions is not sufficient, and several well-defined positions of the measurement plane must be chosen. This choice has to take into account the object geometry, flow conditions and the methodology.

show abstract

Section: The Effect Of Radial Positioning Of the Lda Measurement Volu...mentioning

confidence: 69%

The influence of radial positioning accuracy on LDA velocity measurements in a valve gap

Weclas¹

1996

Meas. Sci. Technol.

View full text Add to dashboard Cite

show abstract

Numerical calculation of coolant flow around cylinder liner in heavy duty diesel engine.

Cited by 1 publication

References 0 publications

The influence of radial positioning accuracy on LDA velocity measurements in a valve gap

The influence of radial positioning accuracy on LDA velocity measurements in a valve gap

Contact Info

Product

Resources

About