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- The flow field visualization of a straight HP trubine cascade is conducted in alarge-scale low-speed open-loop cascade heat transfer wind tunnel. 在大尺寸低速葉柵傳熱風洞中對一種高壓渦輪導向葉柵的流場進行了流動顯示實驗研究。
- Research is conducted on the energy loss of flow around a cascade of guide vanes in a low speed wind tunnel numerically and experimentally. 低速迴流式風洞中拐角部位的流動損失佔總損失的比重很大,該位置導流片繞流的流動狀況對於流動損失有明顯的影響。
- The planes survived the wind tunnel test intact. 這些紙飛機在測試風道中絲毫未損。
- It is not correct to think of the wind tunnel having uniform flow. 設想風洞具有均勻的氣流是不正確的。
- The process flows of metallic surface pretreatment and tunnel cascade phosphating were introduced respectively. 分別介紹了金屬表面前處理和隧道式噴淋磷化工藝流程。
- The affect of endwall fences at different locations on compressor cascade loss and secondary flow were investigated through detailed experimental investigation in a low speed wind tunnel. 在低速大尺寸葉柵風洞上通過詳細測量葉柵流場,研究了葉柵端壁上不同周向位置處加裝端壁翼刀對壓氣機葉柵損失和二次流的影響。
- Setting very low speeds in a wind tunnel is always a vexatious problem. 在風洞中調出低風速來始終是一個麻煩問題。
- It should be noted that a balance is not always required in a wind tunnel. 應該指出,天平對風洞來說並非是絕對必須的。
- The aerodynamics characteristics of this airfoil is studied in wind tunnel. 進行了翼型的低速氣動力性能研究,為附面層特性研究提供了方向。 結果表明,該翼型具有較好的升阻和俯仰特性,但失速特性差。
- The wind tunnel is produced under a technical cooperation agreement with Ford Co of US. 風洞機是根據與美國福特公司的技術合作協議生產的。
- Any flight test and wind tunnel correlation always suffers from a great number of unknowns. 在對飛行試驗與風洞試驗進行比較時總有大量的未知數。
- The experiments were conducted in a wind tunnel at a location 50 ft downwind from the fan. 實驗是在風洞中距離風機50英尺處進行。
- The damping derivatives can only be determined experimentally in the wind tunnel or ballistic range. 阻尼導數只能用風洞或彈道試驗來確定。
- In the experiment under the 20 m/s wind tunnel conditions, the wind abrasion modulus is almost zero. 在每秒20米的風洞實驗中,吹蝕模數幾乎為零。
- In this paper, the initial stage in application of fuzzy logic to aircraft high-angle-of attack aerodynamics using wind tunnel test data is outlined. 本文概述最初階段利用風洞試驗數據應用模糊邏輯研究飛機大攻角空氣動力學的情況。
- To investigate the aerodynamic performance effects of front guide blade to test cascade, low speed wind tunnel experiments were carried out on the two LGV cascades with and without front guide blade. 摘要為了考察導向葉片對實驗渦輪導向器氣動性能及渦繫結構的影響,採用在實驗葉柵前放置前置導葉的方法分別對原型和改型兩種渦輪低壓導向器進行了低速風洞實驗。
- In the experiment under the 20 m/s wind tunnel conditions,the wind abrasion modulus is almost zero. 在每秒20米的風洞實驗中,吹蝕模數幾乎為零。
- Both types of tests have been explored in wind tunnels. 這兩種形式的試驗都已在風洞中進行過探索。
- NASA and Boeing said data from the flight are already being compared with data from wind tunnel tests. NASA和波音公司的數據說,從飛行正在與風洞試驗數據。
- The design method has successfully solved the problem of design and matching of Swivel Table for Sand-Dirt Wind Tunnel. 所提出的設計方法成功地解決風洞轉檯的設計與匹配問題,有效地縮短了設計周期。