燃烧室壁面 meaning in English
chamber-wall surface
Examples
- The last or main injection pulse is set around tdc . when the diesel spray impinging on the combustion wall , the bump around the combustion chamber wall can strip off the wall jet and form a secondary spray in combustion chamber , so the fuel and air can mix well and homogenous
在主喷射时刻，利用燃烧室壁面的bump迅速剥离壁面射流，在空间形成二次射流，二次射流进入燃烧室空间后，再一次与空气混合，形成相对均匀的稀混合气。 - Planar laser induced fluorescence ( plif ) was used to study the spray / wall impinging in constant volume vessel . the experimental result show that when fuel spray impinging on the plane wall , wall jet was formed while fuel impinging on a plane wall with a bump , when the wall jet meet the bump , a secondary jet can be formed . some parameters affecting the secondary spray were studied , including bump height , the secondary impinging distance , impinging distance and injector parameters
对传统燃烧室和bump燃烧室内燃油空气混合过程进行了对比研究，发现燃油撞壁以后在传统燃烧室壁面形成壁面射流，这一层燃油浓度很高，很难与空气混合，而在bump燃烧室内，壁面射流遇到bump后，会在空间形成二次射流，二次射流进一步能快速与空气充分混合。 - At the preliminary stage of burning the gas flows along the back surface of the submerged nozzle and no recirculation forms in the aft - end cavity . at the medium stage of burning a weak recirculation forms in the rear of aft - end cavity by the force of injection flow . at the end stage of burning the flow separates at the c ombustion channel and a strong vortex forms in the aft - end cavity
实验结果表明，在发动机工作过程中随着燃面的退移，燃烧室尾部的流动会发生很大变化，初始时刻背壁区加质流沿喷管背壁进入喷管，背壁区没有回流形成；中间时刻在加质流的驱动下背壁区后部形成较弱的回流；结束时刻气流在燃烧室壁面分离，背壁区形成强烈的回流。