NTF 测试数据

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NTF 测试数据

NTF Test Data

2018 年 10 月，美国国家航天局（NASA）在 NASA 兰利国家跨声速风洞（National Transonic Facility，NTF）中完成了对带有自然片流（Natural Laminar Flow，NLF）的通用研究模型（CRM-NLF）半翼展机翼的测试。此次测试的主要重点是评估 CRM-NLF 机翼在不同雷诺数和测试条件下的片流范围。在测试期间，获取了弦长雷诺数从 1000 万到 3000 万、马赫数（Mach number）从 0.84 到 0.86 的数据。这项研究为 NTF 中的片流测试必要程序提供了宝贵的见解。它还显著推进了新型碳基加热层技术，以提高低温风洞中温度敏感漆（Temperature Sensitive Paint，TSP）转捩可视化数据的质量。

A test of the new NASA Common Research Model with a Natural Laminar Flow (CRM-NLF) semispan wing in the NASA Langley National Transonic Facility (NTF) was completed in October 2018. The main focus of this test was the evaluation of the extent of laminar flow on the CRM-NLF wing at various Reynolds numbers and test conditions. During this test, data were acquired at chord Reynolds numbers from 10 to 30 million and at Mach numbers ranging from 0.84 to 0.86. This investigation provided valuable insight into the necessary procedures for laminar flow testing in the NTF. It also significantly advanced the new carbon based heating layer technique to improve the quality of transition visualization data from temperature sensitive paint (TSP) in a cryogenic wind tunnel.

相关文件与数据

Related Files and Data

下方可下载在 NTF 测试中获得的 4 个数据点的温度敏感漆（TSP）后处理图像（jpg 格式）：

Files in jpg format of the post-processed Temperature Sensitive Paint images from 4 data points obtained in the NTF test can be downloaded below: