差别
这里会显示出您选择的修订版和当前版本之间的差别。
| 后一修订版 | 前一修订版 | ||
|
course:interesting_problems:2025:topic14:start [2024/08/23 15:10] yao-hq 创建 |
course:interesting_problems:2025:topic14:start [2024/08/26 11:37] (当前版本) yao-hq [参考文献] |
||
|---|---|---|---|
| 行 2: | 行 2: | ||
| * Pump air into a plastic water bottle partially filled with water. Under certain conditions, the bottle is launched and flies into the air. Investigate how the acceleration during lift-off depends on relevant parameters. | * Pump air into a plastic water bottle partially filled with water. Under certain conditions, the bottle is launched and flies into the air. Investigate how the acceleration during lift-off depends on relevant parameters. | ||
| * 向部分装有水的塑料水瓶中打气。在特定条件下，水瓶会被发射并飞向空中。研究起飞过程中的加速度如何取决于相关参数。 作者：IYPT青年物理学家 https://mp.weixin.qq.com/s/5W6-LwPaFwcg9YD_fvn4nQ 出处：wx | * 向部分装有水的塑料水瓶中打气。在特定条件下，水瓶会被发射并飞向空中。研究起飞过程中的加速度如何取决于相关参数。 作者：IYPT青年物理学家 https://mp.weixin.qq.com/s/5W6-LwPaFwcg9YD_fvn4nQ 出处：wx | ||
| - | * 浅析： | + | * 浅析：本题涉及很常见的科普玩具“水火箭”：随着瓶内气压升高瓶盖与瓶口脱离，水向后喷出，火箭在反作用力下发射。水火箭和火箭最大的不同，在于其推进的媒介由高温空气变成水。本题应考虑瓶内水的质量、泵入空气产生的压力、塑料瓶形状及材质等对发射加速度的影响。 作者：BNU物理视界 https://www.bilibili.com/read/cv36771220/?jump_opus=1 出处：bilibili |
| | | ||
| ====参考文献==== | ====参考文献==== | ||
| - | * | + | * [1] Prusa J M. Hydrodynamics of a water rocket[J]. SIAM review, 2000, 42(4): 719-726. |
| + | * [2]Asao S, Yamakawa M, Sawanoi K, et al. Flight simulation of water rocket[J]. International Journal of Computational Methods, 2022, 19(07): 2141017. | ||
| + | * [3]Utsav K C, Alnouti R, Muflehi M. Prediction of Water Rocket Performance[C].2020 Advances in Science and Engineering Technology International Conferences (ASET). IEEE, 2020: 1-5. | ||
| + | * [4] Romanelli A, Bove I, González Madina F. Air expansion in a water rocket[J]. American Journal of Physics, 2013, 81(10): 762-766. | ||
| ====课题研究记录==== | ====课题研究记录==== | ||
| 课题研究中可以进行记录的内容： | 课题研究中可以进行记录的内容： | ||