---
title: FlowBench-LDC2D-Harmonics
canonical_url: "https://www.modelscope.cn/datasets/OneScience/FlowBench-LDC2D-Harmonics"
md_url: "https://www.modelscope.cn/datasets/OneScience/FlowBench-LDC2D-Harmonics.md"
repository: OneScience/FlowBench-LDC2D-Harmonics
last_updated: 2026-10-26
license: cc-by-nc-4.0
storage_size: "440 MB"
downloads: 1
stars: 0
---

# FlowBench-LDC2D-Harmonics

> FlowBench-LDC2D-Harmonics - OneScience 在 ModelScope 开源的数据集。FlowBench LDC NS 2D Harmonics

OneScience/FlowBench-LDC2D-Harmonics 是 ModelScope 魔搭社区上的数据集，存储大小 440 MB，采用 cc-by-nc-4.0 许可。

- **Repository**: OneScience/FlowBench-LDC2D-Harmonics
- **License**: cc-by-nc-4.0
- **Storage size**: 440 MB
- **Downloads**: 1
- **Stars**: 0
- **Last updated**: 2026-10-26

Source: https://www.modelscope.cn/datasets/OneScience/FlowBench-LDC2D-Harmonics

---

# FlowBench LDC NS 2D Harmonics

## 数据集介绍

本仓库整理 [BGLab/FlowBench](https://huggingface.co/datasets/BGLab/FlowBench) 官方数据集中的 `LDC_NS_2D/128x128/harmonics` 子集，保留原始文件及目录结构，用于复杂几何二维顶盖驱动腔流预测。

## 数据集支持的任务

以三通道输入场预测四通道流场输出。配套模型为 [OneScience/FlowBench-FNO-LDC2D-Harmonics](https://www.modelscope.cn/models/OneScience/FlowBench-FNO-LDC2D-Harmonics)，按固定随机种子将 1000 组样本的 80% 用于训练、20% 用于验证。

## 数据格式

| 文件 | `data` 字段 shape | dtype | 说明 |
| --- | --- | --- | --- |
| `LDC_NS_2D/128x128/harmonics_lid_driven_cavity_X.npz` | `[1000,3,128,128]` | `float64` | 模型输入 |
| `LDC_NS_2D/128x128/harmonics_lid_driven_cavity_Y.npz` | `[1000,4,128,128]` | `float64` | 参考输出 |

使用 `numpy.load(path)["data"]` 读取。原始压缩文件未重新计算或改写。

## 数据集使用方式

在模型包根目录运行：

```bash
modelscope download --dataset OneScience/FlowBench-LDC2D-Harmonics --local_dir ./data
```

## OneScience 官方信息

| 平台 | OneScience 主仓库 | Skills 仓库 |
| --- | --- | --- |
| Gitee | https://gitee.com/onescience-ai/onescience | https://gitee.com/onescience-ai/oneskills |
| GitHub | https://github.com/onescience-ai/OneScience | https://github.com/onescience-ai/oneskills |

## 引用与许可证

- 论文：[FlowBench: A Large Scale Benchmark for Flow Simulation over Complex Geometries](https://arxiv.org/abs/2409.18032)。
- 原始数据：[BGLab/FlowBench](https://huggingface.co/datasets/BGLab/FlowBench)，许可为 [CC BY-NC 4.0](https://creativecommons.org/licenses/by-nc/4.0/)；使用时须署名，且仅限非商业用途。