外文翻中文--電弧爐煉鋼過(guò)程中超音速聚流氧槍的流體動(dòng)力學(xué)模擬-其他專業(yè)-資料下載頁(yè)
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【導(dǎo)讀】然而，對(duì)于超音速聚流氧槍，已有的基本物理研究非常有限。在本研究中，超音速射。流流體動(dòng)力學(xué)在有火焰覆蓋環(huán)境溫度和室溫中的實(shí)驗(yàn)數(shù)據(jù)進(jìn)行驗(yàn)證。數(shù)值結(jié)果表明，超音。使用火焰籠罩的超音速射流相比常規(guī)的超音速射流的擴(kuò)展率顯著下降。于在大約1700K煉鋼條件下研究連續(xù)超音速氧氣射流的特性。連續(xù)超音速氧氣射流在煉。鋼條件的潛在的核心長(zhǎng)度是在室溫環(huán)境溫度的倍。由于動(dòng)高壓與其聯(lián)合使之具有更高更深的穿透力和能夠更好的融合，所以超音。速氣體射流優(yōu)于亞音速氣流。當(dāng)一個(gè)超音速射流從拉法兒噴嘴噴出時(shí)，它便于周?chē)沫h(huán)。境相互作用產(chǎn)生一個(gè)湍流混合的區(qū)域。在與噴嘴距離加大的過(guò)程中，射流直徑會(huì)增加，射流速度會(huì)減緩。在吹氧期間，液面與噴嘴出口之間的距離越大，周?chē)黧w的夾帶越多，和液體的混合度降低，這也降低了反應(yīng)速率。為了克服該問(wèn)題，焰覆蓋傳統(tǒng)超音速射流產(chǎn)生的。其同時(shí)聲稱，其在爐。與主反應(yīng)產(chǎn)物CO2和H2O燃燒產(chǎn)物生成。分解反應(yīng)是吸熱的，因此，實(shí)際的火焰溫度
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