Effects of Liquid Transpiration Cooling on Heat Transfer to the Diverging Region of a Porous-Walled Nozzle
This research effort investigated the effects of evaporation of water on the heat transferred to the wall of the diverging portion of a porous walled nozzle The AFIT High Pressure Shock Tube was used with a two-dimensional Mach 3 nozzle. One flat surface of the nozzle was fitted with a layer of poro...
-д хадгалсан:
| Үндсэн зохиолч: | |
|---|---|
| Формат: | text |
| Хэвлэсэн: |
AFIT Scholar
1997
|
| Нөхцлүүд: | |
| Онлайн хандалт: | https://scholar.afit.edu/etd/5764 https://scholar.afit.edu/context/etd/article/6767/viewcontent/ADA336722_Redacted_2.pdf |
| Шошгууд: |
Шошго нэмэх
Шошго байхгүй, Энэхүү баримтыг шошголох эхний хүн болох!
|
| _version_ | 1870452328121761792 |
|---|---|
| author | Schieb, Daniel J. |
| author_facet | Schieb, Daniel J. |
| author_sort | Schieb, Daniel J. |
| building | US Air Force Institute of Technology (AFIT) |
| collection | AFIT Scholar |
| description | This research effort investigated the effects of evaporation of water on the heat transferred to the wall of the diverging portion of a porous walled nozzle The AFIT High Pressure Shock Tube was used with a two-dimensional Mach 3 nozzle. One flat surface of the nozzle was fitted with a layer of porous stainless steel from the nozzle throat to the exit. This porous material was saturated with water to simulate liquid transpiration cooling. Surface temperature data was taken in this region using fast response coaxial thermocouple. Heat transfer was determined from the surface temperature history. Data was taken for stagnation pressures ranging from 2.0 to 5.2 MPa. The effectiveness of the cooling diminished with increasing stagnation conditions. Reduction in convection heat transfer coefficient ranged from 10% at higher stagnation pressures to 130% at the lowest stagnation pressure tested. |
| format | text |
| id | afit-etd-6767 |
| institution | US Air Force Institute of Technology |
| publishDate | 1997 |
| publisher | AFIT Scholar |
| record_format | dspace |
| spelling | afit-etd-6767 Effects of Liquid Transpiration Cooling on Heat Transfer to the Diverging Region of a Porous-Walled Nozzle Schieb, Daniel J. This research effort investigated the effects of evaporation of water on the heat transferred to the wall of the diverging portion of a porous walled nozzle The AFIT High Pressure Shock Tube was used with a two-dimensional Mach 3 nozzle. One flat surface of the nozzle was fitted with a layer of porous stainless steel from the nozzle throat to the exit. This porous material was saturated with water to simulate liquid transpiration cooling. Surface temperature data was taken in this region using fast response coaxial thermocouple. Heat transfer was determined from the surface temperature history. Data was taken for stagnation pressures ranging from 2.0 to 5.2 MPa. The effectiveness of the cooling diminished with increasing stagnation conditions. Reduction in convection heat transfer coefficient ranged from 10% at higher stagnation pressures to 130% at the lowest stagnation pressure tested. 1997-12-01T08:00:00Z text application/pdf https://scholar.afit.edu/etd/5764 https://scholar.afit.edu/context/etd/article/6767/viewcontent/ADA336722_Redacted_2.pdf Theses and Dissertations AFIT Scholar Heat transfer Transpiration Porous materials Rocket nozzles Liquid cooling Temperature Heat Transfer, Combustion Propulsion and Power |
| spellingShingle | Heat transfer Transpiration Porous materials Rocket nozzles Liquid cooling Temperature Heat Transfer, Combustion Propulsion and Power Schieb, Daniel J. Effects of Liquid Transpiration Cooling on Heat Transfer to the Diverging Region of a Porous-Walled Nozzle |
| title | Effects of Liquid Transpiration Cooling on Heat Transfer to the Diverging Region of a Porous-Walled Nozzle |
| title_full | Effects of Liquid Transpiration Cooling on Heat Transfer to the Diverging Region of a Porous-Walled Nozzle |
| title_fullStr | Effects of Liquid Transpiration Cooling on Heat Transfer to the Diverging Region of a Porous-Walled Nozzle |
| title_full_unstemmed | Effects of Liquid Transpiration Cooling on Heat Transfer to the Diverging Region of a Porous-Walled Nozzle |
| title_short | Effects of Liquid Transpiration Cooling on Heat Transfer to the Diverging Region of a Porous-Walled Nozzle |
| title_sort | effects of liquid transpiration cooling on heat transfer to the diverging region of a porous walled nozzle |
| topic | Heat transfer Transpiration Porous materials Rocket nozzles Liquid cooling Temperature Heat Transfer, Combustion Propulsion and Power |
| url | https://scholar.afit.edu/etd/5764 https://scholar.afit.edu/context/etd/article/6767/viewcontent/ADA336722_Redacted_2.pdf |
| work_keys_str_mv | AT schiebdanielj effectsofliquidtranspirationcoolingonheattransfertothedivergingregionofaporouswallednozzle |