( 1. 東北大學(xué) 材料與冶金學(xué)院， 沈陽(yáng) 110006；
2. 沈陽(yáng)理工大學(xué) 材料科學(xué)與工程學(xué)院， 沈陽(yáng) 110168)
摘 要: 采用可視觀察方法研究了鋁液充型過(guò)程的二維流動(dòng)狀態(tài)， 并與水模擬實(shí)驗(yàn)進(jìn)行了對(duì)比分析， 通過(guò)調(diào)整水粘度來(lái)保證水模擬過(guò)程與鋁液充型過(guò)程的相似性。以PIV技術(shù)為基礎(chǔ)， 運(yùn)用數(shù)字視頻處理中的運(yùn)動(dòng)補(bǔ)償技術(shù)， 選用NCCF準(zhǔn)則和三步搜索法對(duì)低壓鑄造澆注系統(tǒng)水模擬充型過(guò)程的內(nèi)部二維流場(chǎng)進(jìn)行了計(jì)算和分析；運(yùn)用邊緣檢測(cè)及提取技術(shù)， 選用Roberts邊緣檢測(cè)算子對(duì)低壓鑄造澆注系統(tǒng)水模擬充型過(guò)程的二維表面流場(chǎng)進(jìn)行了計(jì)算和分析，實(shí)現(xiàn)了水模擬過(guò)程的量化分析。
關(guān)鍵字: 鋁液充型； 水模擬； 粒子圖像測(cè)速技術(shù)； 流場(chǎng)； 計(jì)算機(jī)可視化
ZHAI Yu-chun1
（ 1. College of Materials and Metallurgy, Northeastern University,
Shenyang 110006, China;
2. College of Materials Science and Engineering,
Shenyang Ligong University, Shenyang 110168, China）
Abstract: The two-dimension flowing state of aluminum liquid filling process was studied by video observation and was contrasted with water simulation experiment, which ensure water simulation comparability with aluminum liquid filling process by changing water viscosity. On PIV technology, the inside two-dimension fluid field of water simulation filling process for low-die casting gating was calculated and analyzed by movement compensate technology in digital video processing and NCCF rule. On edge inspecting and picking-up technology, the two-dimension surface fluid field of water simulation filling process for low-die casting gating was calculated and analyzed by Roberts edge inspect arithmetic operators. It realizes the quantity analyses of water simulation process.
Key words: aluminum liquid filling; water simulation; particle image velocimetry technology(PIV); fluid field; computer video
