流体力学和对流稳定性物理学家（博士）
Fluid Dynamics and Convection Stability Physicist (PhD)
**薪资:** 每小时80-110美元（美元）。
## 关于工作内容
**CritPt** 是一个面向研究级物理挑战的公开基准，旨在测试前沿AI模型是否能够进行真正的物理研究推理，而非仅解决教科书问题。该基准论文为 **[arXiv:2509.26574](https://arxiv.org/abs/2509.26574)**，申请前建议阅读，这将快速告诉你是否对该工作感兴趣。
我们正在寻找物理学家，让他们在其所属子领域中处理研究级的物理问题。根据你的发表记录所在领域，这可能意味着创建问题、解决问题、审查已完成的工作，或进行审计。一旦你被匹配到一个领域，我们会与你确认具体任务。
这是研究级别的工作，而非批量工作。你所产出的内容必须足够完整，以便同领域的其他专家能够独立跟进和验证，因此每项任务都包含书面推理。
## 本小组的研究领域
两个领域，均涉及浮力驱动对流的线性稳定性。我们匹配非常精准：你需要在对流稳定性方面有发表，而不是广泛地在流体力学领域。每个领域列出了所需的方法。
**1. Rayleigh-Benard对流：混合边界条件下的线性稳定性：** Rayleigh-Benard对流，Boussinesq近似，线性稳定性分析，模态扰动展开，混合机械和热边界条件，固定通量热强迫，临界稳定性分析，谱特征值方法。
**2. 多孔介质（Rayleigh-Darcy）对流：线性稳定性：** Darcy定律用于多孔介质流动，Rayleigh-Darcy对流，Boussinesq浮力近似，线性稳定性分析，固定通量和开放边界条件，模态扰动展开，临界稳定性分析，饱和多孔层中的浮力驱动传输。
## 我们期望你在自己的论文中看到的方法
你应该能够指出自己的论文，证明至少具备以下某一类方法：
- Boussinesq近似和浮力驱动流动
- 线性稳定性分析和模态扰动展开
- 临界稳定性分析和临界Rayleigh数确定
- 谱特征值方法
- Darcy定律和多孔介质流动
## 我们寻找的人选
**流体力学、应用数学、机械工程或相关领域的博士。** 这是一个硬性要求。
查看英文原文
**Pay:** $80-$110 per hour (USD).
## About the work
**CritPt** is a public benchmark of research-level physics challenges, built to test whether frontier AI models can carry out genuine physics research reasoning rather than textbook problem solving. The benchmark paper is **[arXiv:2509.26574](https://arxiv.org/abs/2509.26574)** and we recommend reading it before applying. It will tell you quickly whether this work interests you.
We are engaging physicists to work on research-level physics problems in their own subfield. Depending on where your publication record fits, that can mean creating problems, solving them, reviewing completed work, or auditing it. We agree the specific assignment with you once you are matched to an area.
This is research-grade work rather than volume work. Whatever you produce has to be complete enough for another specialist in your subfield to follow and verify independently, so written reasoning is part of every assignment.
## Research areas in this panel
Two areas, both on the linear stability of buoyancy-driven convection. We match narrowly: you need to have published on convection stability specifically, not on fluid dynamics broadly. Each area lists the methods it requires.
**1. Rayleigh-Benard convection: linear stability with mixed boundary conditions:** Rayleigh-Benard convection, Boussinesq approximation, linear stability analysis, normal-mode perturbation expansion, mixed mechanical and thermal boundary conditions, fixed-flux thermal forcing, marginal stability analysis, spectral eigenvalue methods.
**2. Porous-medium (Rayleigh-Darcy) convection: linear stability:** Darcy's law for porous-medium flow, Rayleigh-Darcy convection, Boussinesq buoyancy approximation, linear stability analysis, constant-flux and open boundary conditions, normal-mode perturbation expansion, marginal stability analysis, buoyancy-driven transport in saturated porous layers.
## Methods we expect to find in your own publications
You should be able to point to your own papers demonstrating **at least one** of the following families:
- Boussinesq approximation and buoyancy-driven flow
- Linear stability analysis and normal-mode perturbation expansion
- Marginal stability analysis and critical Rayleigh number determination
- Spectral eigenvalue methods
- Darcy's law and porous-medium flow
## Who we are looking for
**A PhD in fluid mechanics, applied mathematics, mechanical engineering or a closely related field.** This is a hard requirement. Postdoctoral researchers, research scientists and junior faculty are the strongest fit. Senior PhD students with a strong first-author record are welcome to apply.
**Published work on convection stability specifically.** This is the single most common reason we decline otherwise excellent researchers. Command of the methods is not enough if you have not published on the phenomenon itself.
**A verifiable publication record.** Three to five representative papers with DOIs or arXiv IDs, ideally from the last five years. First author strongly preferred. A journal DOI is expected here, since much of this literature is not on arXiv. Every paper you list will be checked against the public record.
**Working proficiency with LaTeX, Python and Jupyter.** Some familiarity with an agentic coding extension in VS Code is useful. Gaps there are acceptable if you declare them honestly.
**English at B2 or above**, including written reasoning. A large part of the value you add is how clearly you set out your argument.
## Application steps
1. **Apply and complete the attached form.** Basic information, education, research experience, your method self-attestation, and the areas above that you are the best fit for. For each area you select, give a DOI or arXiv ID of **your own paper** as proof, with your author position and the methods it demonstrates. A selection without proof is not scored.
2. **We verify your papers and authorship** against the public record.
3. **Then one of two things happens.** Either we onboard you directly, or we invite you to a short live alignment call to agree the area and the assignment with you.
4. A brief **30 to 45 minute assessment** may be added, but only where we need it. Most applicants will not see one.
## Commitment and rate
**10 hours per week**, sustained across an **8 to 10 week** window, starting immediately. Remote and asynchronous with no fixed hours.
**$80 to $110 per hour**, set by depth of subdomain match.