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Outline
To address the issue of degraded insulation performance and non‑uniform temperature field on the outer wall of cryogenic vessels due to flow field reconstruction on the outer surface induced by environmental wind speed during the application of vacuum multi‑layer insulation （MLI），a heat transfer model for a high‑vacuum multi‑layer insulation fast‑fill cryogenic vessel was established.The influence patterns of wind speed conditions on the vessel's temperature distribution characteristics and insulation performance were systematically analyzed.By employing a layer‑by‑layer numerical iterative algorithm for heat transfer，the heat transfer characteristics of each insulation layer within the MLI were revealed，clarifying the changes in the heat transfer mechanism of the multi‑layer insulation structure under different wind speeds.The research results indicate that within the wind speed range of 0~5 m/s，radiative heat transfer within the MLI significantly increases with higher wind speeds，leading to a noticeable rise in the outer wall temperature of the cryogenic vessel，with a 42% increase in specific heat flux.When the wind speed exceeds 5 m/s，the changes in temperature and heat leak tend to level off.At this stage，radiative heat transfer accounts for more than 50%，becoming the dominant heat transfer mechanism.This study provides a theoretical basis and technical support for the non‑destructive testing of heat leak in cryogenic vessels and their installation site selection.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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