Page 44 - 201805
P. 44

626                                                                                  2018 年 9 月




























                         Rod-shaped structures ஝ᄬ  10 8 6 4 2  Rod-shaped structures   ᄰय़/mm 25 5  100  ঴᫂ए/mm
                                                                30
                                                                                               80
                                                                20
                                                                                               60
                                                                15
                                                                                               40
                                                                10
                                                                                               20
                           0
                                  1
                                        2
                            0
                                         ௑ᫎ/s  3    4     5      0 0    1    2  ௑ᫎ/s  3  4    5 0
                                  图 23  空化结构的稳定性 (Rod-shaped) (f = 20 kHz, h = 1.23 mm)
                     Fig. 23 Morphological stability of cavitation structures (Rod-shaped) (f = 20 kHz, h = 1.23 mm)



                                                                                               إٙ
                         ϣൣ࠱ื



                                                                                             ፇ౞ূܭ



                              图 24  射流冲击下空化结构的演化 (Disc-shaped) (f = 20 kHz, h = 0.82 mm)
                  Fig. 24 Evolution of cavitation structure when a liquid jet impact from the right side (Disc-shaped) (f = 20
                  kHz, h = 0.82 mm)





                                                                                               إٙ
                         ϣൣ࠱ื


                                                                                              ፇ౞ূܭ




                              图 25  射流冲击下空化结构的演化 (Rod-shaped) (f = 20 kHz, h = 0.82 mm)
                  Fig. 25 Evolution of cavitation structure when a liquid jet impact from the right side (Rod-shaped) (f = 20
                  kHz, h = 0.82 mm)
   39   40   41   42   43   44   45   46   47   48   49