| 6 | 1/1 | 返回列表 |
| 查看: 1073 | 回復(fù): 5 | ||
| 本帖產(chǎn)生 1 個 博學(xué)EPI ,點擊這里進(jìn)行查看 | ||
13925835350新蟲 (小有名氣)
|
[求助]
請問下面這段英文里的“ the volume is effectively infinity”怎么理解?
|
|
|
請問下面這段英文里的“ the volume is effectively infinity”怎么理解,能解答一下嗎? the value that LAMMPS computes as pressure under non-periodic boundary conditions has no meaning. please see the formula, how pressure is computed here: http://lammps.sandia.gov/doc/compute_pressure.html under non-periodic boundaries, the volume is effectively infinity and doesn't change. what LAMMPS uses as volume of the simulation cell is truncated completely arbitrarily for technical and convenience reasons. thus if you correct for this arbitrary truncation, the pressure *must* be zero by definition, since any finite number divided by infinity results in zero. |
木蟲 (正式寫手)

木蟲 (正式寫手)
| 我只是字面反應(yīng),具體的我也不是這個方向的。但是問題應(yīng)該在 “非周期性邊界條件“,既然邊界不是周期性的那就是說邊界無窮大?我也不懂,問問做模擬的吧 |

木蟲 (正式寫手)

新蟲 (小有名氣)
木蟲 (正式寫手)

| 6 | 1/1 | 返回列表 |
| 最具人氣熱帖推薦 [查看全部] | 作者 | 回/看 | 最后發(fā)表 | |
|---|---|---|---|---|
|
[考研] 材料學(xué)碩080500復(fù)試調(diào)劑294 +3 | 四葉zjz 2026-03-04 | 3/150 |
|
|---|---|---|---|---|
|
[基金申請]
|
xhuama 2026-03-02 | 14/700 |
|
|
[考研] 304分材料專碩求調(diào)劑 +9 | qiuzhigril 2026-03-03 | 12/600 |
|
|
[考研] 一志愿985材料與化工 326分求調(diào)劑 +3 | Hz795795 2026-03-04 | 3/150 |
|
|
[考研] 成績276,專業(yè)代碼0856求調(diào)劑 +10 | 小陳朵 2026-03-03 | 10/500 |
|
|
[考研] 0703化學(xué)求調(diào)劑,總分320分,一志愿中南民族大學(xué) +3 | 19286712440 2026-03-04 | 3/150 |
|
|
[考研] 材料專碩346求調(diào)劑 +3 | 旺一下 2026-03-04 | 3/150 |
|
|
[考研] 一志愿中科大080500總分324求調(diào)劑 +3 | jorna 2026-03-03 | 6/300 |
|
|
[考研] 085601 材料工程 320 +6 | 和樂瑤 2026-03-03 | 6/300 |
|
|
[考研] 291求調(diào)劑 +3 | 咕嚕咕嚕123123 2026-03-02 | 4/200 |
|
|
[考研] 291求調(diào)劑 +4 | Afy123456 2026-03-03 | 7/350 |
|
|
[基金申請] 請問大家,研究風(fēng)險與應(yīng)對措施那里, 大家都怎么寫呢 ? +3 | cauasen 2026-03-02 | 3/150 |
|
|
[考研] 276求調(diào)劑 +8 | 路lyh123 2026-02-28 | 10/500 |
|
|
[考研] 298求調(diào)劑 +7 | axyz3 2026-02-28 | 8/400 |
|
|
[考研]
|
好好好1233 2026-02-28 | 16/800 |
|
|
[考研] 材料與化工328求調(diào)劑 +3 | 。,。,。,。i 2026-03-02 | 3/150 |
|
|
[考研] 材料類求調(diào)劑 +11 | wana_kiko 2026-02-28 | 14/700 |
|
|
[考研] 279求調(diào)劑 +3 | dua1 2026-03-01 | 4/200 |
|
|
[考研] 311求調(diào)劑 +9 | 南迦720 2026-02-28 | 10/500 |
|
|
[考研] 304求調(diào)劑 +3 | 52hz~~ 2026-02-28 | 5/250 |
|