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Axial Waterjet (AxWJ) Model 5662: Hull Resistance and Model-Scale Powering with LDV Nozzle Design.
| 题名： | Axial Waterjet (AxWJ) Model 5662: Hull Resistance and Model-Scale Powering with LDV Nozzle Design. |
| 作者： | cusanelli, d. s. carpenter, s. a. |
| 关键词： | measurement, shafts(machine elements), sealift operations, flow, marine transportation, displacement, scale models |
| 摘要： | This report is a partial documentation of the first series of model- scale tests conducted 12/06-2/07, to evaluate the Axial Waterjet (AxWJ), Model 5662, on the Joint High Speed Sealift (JHSS) hull platform. This document contains calm water resistance and model-scale powering test results only. Bare hull effective powers were determined for the AxWJ hull at three displacement conditions. Appended effective power was determined for the AxWJ hull with the LDV waterjet nozzles installed, at design displacement. Bare hull and appended effective powers for AxWJ were compared to those of the JHSS Baseline shaft & strut (BSS) hull. Model scale rotor force measurements were recorded for the AxWJ under power. These tests were conducted with waterjet nozzles specifically designed for the purpose of LDV flow survey measurements. During testing, the transom flow was observed to impinge on the nozzle hardware included for LDV measurement purposes, resulting in additional hull drag and power. Detailed powering analysis derived from the LDV and pressure tap measurements, including full-scale powering predictions, will be reported in a separate document. / NOTE: Final rept. Dec 2006-Feb 2007. / Supplementary Notes: The original document contains color images. All DTIC reproductions will be in black and white. / Availability Note: Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5285 Port Royal Road, Springfield, VA, 22161, USA. |
| 总页数： | u0805；72p |
| 报告类型： | 科技报告 |
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