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Axial Waterjet (AxWJ) Model 5662 and Mixed-Flow Waterjet (MxWJ) Model 5662-1: Comparisons of Resistance and Model-Scale Powering with Propulsion Nozzle Designs.
| 题名： | Axial Waterjet (AxWJ) Model 5662 and Mixed-Flow Waterjet (MxWJ) Model 5662-1: Comparisons of Resistance and Model-Scale Powering with Propulsion Nozzle Designs. |
| 作者： | cusanelli, d. s. carpenter, s. a. powers, a. m. |
| 关键词： | scale models, hulls(marine), nozzles, sealift operations, axial flow, power, propulsion systems, resistance |
| 摘要： | This report is a partial documentation of two series of model-scale experiments conducted 5/07-6/07, comparing the Axial Waterjet (AxWJ) Model 5662 and the Mixed-Flow Waterjet (MxWJ) Model 5662-1, two waterjet propelled variants of the Joint High Speed Sealift (JHSS) hull platform. This document contains calm water resistance and model-scale powering test results. Bare hull effective powers at three displacement conditions, and appended effective powers at design displacement, were determined and compared for the two waterjet variants, and then compared to the JHSS baseline shaft and strut (BSS) hull. Model-scale rotor force measurements were recorded and compared for both the AxWJ and the MxWJ under power. These tests were conducted on both models with waterjet nozzles specifically designed for propulsion. A detailed powering analysis derived from the AxWJ and MxWJ model resistance and rotor force measurements, as well as LDV velocity measurements and pressure tap measurements, will be reported in a separate document. This future document will address full-scale AxWJ and MxWJ powering predictions and comparisons to the JHSS baseline BSS. / NOTE: Final rept. May-Jun 2007. / Supplementary Notes: Sponsored in part by PMS 385, Washington Navy Yard, DC. 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： | u0812；133p |
| 报告类型： | 科技报告 |
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